Jan Ambjørn

Jan Ambjørn

Professor, emeritus


  1. 2023
  2. Published

    The large-scale structure of the universe from a modified Friedmann equation

    Ambjørn, Jan & Watabiki, Y., 30 Apr 2023, In: Modern Physics Letters A. 38, 12n13, 14 p., 2350068.

    Research output: Contribution to journalJournal articleResearchpeer-review

  3. Published

    Is the present acceleration of the Universe caused by merging with other universes?

    Ambjørn, Jan & Watabiki, Y., 2023, In: Journal of Cosmology and Astroparticle Physics. 2023, 12, 011.

    Research output: Contribution to journalJournal articleResearchpeer-review

  4. 2022
  5. Published

    Topology induced first-order phase transitions in lattice quantum gravity

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A. & Nemeth, D., 3 Apr 2022, In: Journal of High Energy Physics (Online). 2022, 04, 20 p., 103.

    Research output: Contribution to journalJournal articleResearchpeer-review

  6. Published

    Easing the Hubble constant tension

    Ambjørn, Jan & Watabiki, Y., 1 Mar 2022, In: Modern Physics Letters A. 37, 07, 2250041.

    Research output: Contribution to journalJournal articleResearchpeer-review

  7. 2021
  8. Published

    Matter-Driven Change of Spacetime Topology

    Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 12 Oct 2021, In: Physical Review Letters. 127, 16, 5 p., 161301.

    Research output: Contribution to journalLetterResearchpeer-review

  9. Published

    Scalar fields in causal dynamical triangulations

    Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Görlich, A., Jurkiewicz, J. & Nemeth, D., 16 Sep 2021, In: Classical and Quantum Gravity. 38, 60 p., 195030.

    Research output: Contribution to journalJournal articleResearchpeer-review

  10. Published

    Cosmic voids and filaments from quantum gravity

    Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., Aug 2021, In: European Physical Journal C. 81, 8, 5 p., 708.

    Research output: Contribution to journalJournal articleResearchpeer-review

  11. Published

    The susceptibility exponent of Nambu-Goto strings

    Ambjørn, Jan & Makeenko, Y., 21 Jun 2021, In: Modern Physics Letters A. 36, 19, 11 p., 2150136.

    Research output: Contribution to journalJournal articleResearchpeer-review

  12. Published

    Wormholes in 2d Horava-Lifshitz quantum gravity

    Ambjørn, Jan, Hiraga, Y., Ito, Y. & Sato, Y., 10 May 2021, In: Physics Letters B. 816, 5 p., 136205.

    Research output: Contribution to journalJournal articleResearchpeer-review

  13. Published

    Properties of dynamical fractal geometries in the model of causal dynamical triangulations

    Ambjørn, Jan, Drogosz, Z., Gorlich, A. & Jurkiewicz, J., 27 Apr 2021, In: Physical Review D. 103, 8, 17 p., 086022.

    Research output: Contribution to journalJournal articleResearchpeer-review

  14. Published

    CDT Quantum Toroidal Spacetimes: An Overview

    Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 26 Mar 2021, In: Universe. 7, 4, 26 p., 79.

    Research output: Contribution to journalReviewResearchpeer-review

  15. Published

    Wormholes, a fluctuating cosmological constant and the Coleman mechanism

    Ambjørn, Jan, Sato, Y. & Watabiki, Y., 2 Jan 2021, In: Physics Letters B. 815, 5 p., 136152.

    Research output: Contribution to journalJournal articleResearchpeer-review

  16. 2020
  17. Published

    Renormalization in Quantum Theories of Geometry

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Loll, R., 9 Jul 2020, In: Frontiers in Physics. 8, 12 p., 247.

    Research output: Contribution to journalJournal articleResearchpeer-review

  18. Published

    Models of the universe based on Jordan algebras

    Ambjørn, Jan & Watabiki, Y., 1 Jun 2020, In: Nuclear Physics B. 955, 54 p., 115044.

    Research output: Contribution to journalJournal articleResearchpeer-review

  19. Published

    Towards elucidation of zero-temperature criticality of the Ising model on 2D dynamical triangulations

    Ambjørn, Jan, Sato, Y. & Tanaka, T., 18 May 2020, In: Physical Review D. 101, 10, 12 p., 106019.

    Research output: Contribution to journalJournal articleResearchpeer-review

  20. Published

    The higher-order phase transition in toroidal CDT

    Ambjørn, Jan, Czelusta, G., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 7 May 2020, In: Journal of High Energy Physics. 2020, 5, 18 p., 030.

    Research output: Contribution to journalJournal articleResearchpeer-review

  21. 2019
  22. Published

    Critical phenomena in causal dynamical triangulations

    Ambjørn, Jan, Coumbe, D., Gizbert-Studnicki, J., Gorlich, A. & Jurkiewicz, J., 15 Oct 2019, In: Classical and Quantum Gravity. 36, 22, 40 p., 224001.

    Research output: Contribution to journalJournal articleResearchpeer-review

  23. Published

    Towards an UV fixed point in CDT gravity

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 29 Jul 2019, In: Journal of High Energy Physics. 2019, 7, 18 p., 166.

    Research output: Contribution to journalJournal articleResearchpeer-review

  24. Published

    Pseudo-Cartesian coordinates in a model of Causal Dynamical Triangulations

    Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A. & Jurkiewicz, J., 30 Apr 2019, In: Nuclear Physics B. 943, 18 p., 114626.

    Research output: Contribution to journalJournal articleResearchpeer-review

  25. 2018
  26. Published

    Spectral curves for hypergeometric Hurwitz numbers

    Ambjørn, Jan & Chekhov, L. O., 23 Jul 2018, In: Journal of Geometry and Physics. 132, p. 382-392 11 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  27. Published

    The phase structure of causal dynamical triangulations with toroidal spatial topology

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 21 Jun 2018, In: Journal of High Energy Physics. 2018, 6, 23 p., 111.

    Research output: Contribution to journalJournal articleResearchpeer-review

  28. Published

    Perturbed generalized multicritical one-matrix models

    Ambjørn, Jan, Chekhov, L. & Makeenko, Y., Mar 2018, In: Nuclear Physics B. 928, p. 1-20 20 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  29. 2017
  30. Published

    A modified Friedmann equation

    Ambjørn, Jan & Watabiki, Y., 28 Dec 2017, In: Modern Physics Letters A. 32, 40, 1750224.

    Research output: Contribution to journalJournal articleResearchpeer-review

  31. Published

    The use of Pauli-Villars regularization in string theory

    Ambjørn, Jan & Makeenko, Y., 10 Nov 2017, In: International Journal of Modern Physics A. 32, 31, 1750187.

    Research output: Contribution to journalJournal articleResearchpeer-review

  32. Published

    Scattering amplitudes of regularized bosonic strings

    Ambjørn, Jan & Makeenko, Y., 30 Oct 2017, In: Physical Review D. 96, 8, 086024.

    Research output: Contribution to journalJournal articleResearchpeer-review

  33. Published

    Four-dimensional CDT with toroidal topology

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Grosvenor, K. & Jurkiewicz, J., 8 Aug 2017, In: Nuclear Physics B. 922, p. 226-246

    Research output: Contribution to journalJournal articleResearchpeer-review

  34. Published

    Creating 3, 4, 6 and 10-dimensional spacetime from W3 symmetry

    Ambjørn, Jan & Watabiki, Y., 10 Jul 2017, In: Physics Letters B. 770, p. 252-256

    Research output: Contribution to journalJournal articleResearchpeer-review

  35. Published

    Stability of the nonperturbative bosonic string vacuum

    Ambjørn, Jan & Makeenko, Y., 10 Jul 2017, In: Physics Letters B. 770, p. 352-356

    Research output: Contribution to journalJournal articleResearchpeer-review

  36. Published

    New higher-order transition in causal dynamical triangulations

    Ambjørn, Jan, Coumbe, D., Gizbert-Studnicki, J., Gorlich, A. & Jurkiewicz, J., 16 Jun 2017, In: Physical Review D. 95, 12, 124029.

    Research output: Contribution to journalJournal articleResearchpeer-review

  37. Published

    CDT and the big bang

    Ambjørn, Jan & Watabiki, Y., 1 Apr 2017, In: Acta Physica Polonica B, Proceedings Supplement. 10, 2, p. 299-303

    Research output: Contribution to journalConference articleResearchpeer-review

  38. Published

    Characteristics of the new phase in CDT

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J., Klitgaard, N. & Loll, R., 9 Mar 2017, In: European Physical Journal C. 77, 3, 152.

    Research output: Contribution to journalJournal articleResearchpeer-review

  39. 2016
  40. Published

    Impact of topology in causal dynamical triangulations quantum gravity

    Ambjørn, Jan, Drogosz, Z., Gizbert-Studnicki, J., Gorlich, A., Jurkiewicz, J. & Nemeth, D., 8 Aug 2016, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 94, 4, 044010.

    Research output: Contribution to journalJournal articleResearchpeer-review

  41. Published

    Searching for a continuum limit in causal dynamical triangulation quantum gravity

    Ambjørn, Jan, Coumbe, D. N., Gizbert-Studnicki, J. & Jurkiewicz, J., 17 May 2016, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 93, 10, 104032.

    Research output: Contribution to journalJournal articleResearchpeer-review

  42. Published

    String theory as a Lilliputian world

    Ambjørn, Jan & Makeenko, Y., 10 May 2016, In: Physics Letters B. 756, p. 142-146

    Research output: Contribution to journalJournal articleResearchpeer-review

  43. Published

    Scaling behavior of regularized bosonic strings

    Ambjørn, Jan & Makeenko, Y., 22 Mar 2016, In: Physical Review D - Particles, Fields, Gravitation and Cosmology. 93, 6, 066007.

    Research output: Contribution to journalJournal articleResearchpeer-review

  44. Published

    Generalized multicritical one-matrix models

    Ambjørn, Jan, Budd, T. & Makeenko, Y., 2016, In: Nuclear Physics, Section B. 913, p. 357-380 24 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  45. 2015
  46. Published

    A model for emergence of space and time

    Ambjørn, Jan & Watabiki, Y., 7 Oct 2015, In: Physics Letters B. 749, p. 149-152

    Research output: Contribution to journalJournal articleResearchpeer-review

  47. Published

    Signature change of the metric in CDT quantum gravity?

    Ambjørn, Jan, Coumbe, D. N., Gizbert-Studnicki, J. & Jurkiewicz, J., 7 Aug 2015, In: Journal of High Energy Physics (Online). 2015, 8, 033.

    Research output: Contribution to journalJournal articleResearchpeer-review

  48. Published

    Wilson loops in nonperturbative quantum gravity

    Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Loll, R., 7 Jul 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 2, 024013.

    Research output: Contribution to journalJournal articleResearchpeer-review

  49. Published

    Matrix model for strings beyond the c=1 barrier: The spin-s Heisenberg model on random surfaces

    Ambjørn, Jan, Khachatryan, S. & Sedrakyan, A., 6 Jul 2015, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 92, 2, 026002.

    Research output: Contribution to journalJournal articleResearchpeer-review

  50. Published

    The microscopic structure of 2D CDT coupled to matter

    Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Zhang, H., 30 Jun 2015, In: Physics Letters B. 746, p. 359-364

    Research output: Contribution to journalJournal articleResearchpeer-review

  51. Published

    The spectral dimension in 2D CDT gravity coupled to scalar fields

    Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Zhang, H., 30 Apr 2015, In: Modern Physics Letters A. 30, 13, 1550077.

    Research output: Contribution to journalJournal articleResearchpeer-review

  52. Published

    A c=1 phase transition in two-dimensional CDT/Horava-Lifshitz gravity?

    Ambjørn, Jan, Gorlich, A., Jurkiewicz, J. & Zhang, H., 9 Apr 2015, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 743, p. 435-439

    Research output: Contribution to journalJournal articleResearchpeer-review

  53. Published

    Exploring the spectrum of regularized bosonic string theory

    Ambjørn, Jan & Makeenko, Y., 1 Mar 2015, In: Journal of Experimental and Theoretical Physics. 120, 3, p. 470-476

    Research output: Contribution to journalJournal articleResearchpeer-review

  54. 2014
  55. Published

    A MATRIX MODEL FOR HYPERGEOMETRIC HURWITZ NUMBERS

    Ambjørn, Jan & Chekhov, L. O., 1 Dec 2014, In: Teoreticheskaya i Matematicheskaya Fizika. 181, 3, p. 1486-1498

    Research output: Contribution to journalJournal articleResearchpeer-review

  56. Published

    Geodesic distances in Liouville quantum gravity

    Ambjørn, Jan & Budd, T. G., 1 Dec 2014, In: Nuclear Physics, Section B. 889, p. 676-691

    Research output: Contribution to journalJournal articleResearchpeer-review

  57. Published

    Two-dimensional causal dynamical triangulations with gauge fields

    Ambjørn, Jan & Ipsen, A. C., 24 Sep 2014, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 88, 6, 5 p., 067502.

    Research output: Contribution to journalJournal articleResearchpeer-review

  58. Published

    Scale-dependent Hausdorff dimensions in 2d gravity

    Ambjørn, Jan, Budd, T. & Watabiki, Y., 7 Sep 2014, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 736, p. 339-343

    Research output: Contribution to journalJournal articleResearchpeer-review

  59. Published

    Renormalization group flow in CDT

    Ambjørn, Jan, Goerlich, A., Jurkiewicz, J., Kreienbuehl, A. & Loll, R., 21 Aug 2014, In: Classical and Quantum Gravity. 31, 16, 165003.

    Research output: Contribution to journalJournal articleResearchpeer-review

  60. Published

    A note on the Lee-Yang singularity coupled to 2d quantum gravity

    Ambjørn, Jan, Gorlich, A., Ipsen, A. C. & Zhang, H. -., 30 Jul 2014, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 735, p. 191-194

    Research output: Contribution to journalJournal articleResearchpeer-review

  61. Published

    The effective action in 4-dim CDT. The transfer matrix approach

    Ambjørn, Jan, Gizbert-Studnicki, J., Görlich, A. & Jurkiewicz, J., 6 Jun 2014, In: Journal of High Energy Physics (Online). 2014, 6, 034.

    Research output: Contribution to journalJournal articleResearchpeer-review

  62. Published

    Effective QCD string beyond the Nambu-Goto action

    Ambjørn, Jan, Makeenko, I. & Sedrakyan, A., 21 May 2014, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 89, 10, 106010.

    Research output: Contribution to journalJournal articleResearchpeer-review

  63. Published

    A restricted dimer model on a two-dimensional random causal triangulation

    Ambjørn, Jan, Durhuus, Bergfinnur & Wheater, J. F., 2014, In: Journal of Physics A: Mathematical and Theoretical. 47, 365001 .

    Research output: Contribution to journalJournal articleResearchpeer-review

  64. 2013
  65. Published

    Two-Dimensional Quantum Geometry

    Ambjørn, Jan, Nijmegen, U. & Budd, T. G., 31 Oct 2013, In: Acta Physica Polonica B. 44, p. 2537-2558

    Research output: Contribution to journalConference articleResearchpeer-review

  66. Published

    Euclidian 4d quantum gravity with a non-trivial measure term

    Ambjørn, Jan, Glaser, L., Görlich, A. & Jurkiewicz, J., 16 Oct 2013, In: Journal of High Energy Physics (Online). 2013, 10, 100.

    Research output: Contribution to journalJournal articleResearchpeer-review

  67. Published

    The XXZ Heisenberg model on random surfaces

    Ambjørn, Jan & Sedrakyan, A., 21 Sep 2013, In: Nuclear Physics B. 874, 3, p. 877-888

    Research output: Contribution to journalJournal articleResearchpeer-review

  68. Published

    Trees and spatial topology change in CDT

    Ambjørn, Jan & Budd, T. G., 19 Jul 2013, In: Journal of Physics A: Mathematical and Theoretical. 46, 31

    Research output: Contribution to journalJournal articleResearchpeer-review

  69. Published

    Universality of 2d causal dynamical triangulations

    Ambjørn, Jan & Ipsen, A. C., 9 Jul 2013, In: Physics Letters B. 724, 1-3, p. 150-154

    Research output: Contribution to journalJournal articleResearchpeer-review

  70. Published

    CAUSAL DYNAMICAL TRIANGULATIONS AND THE SEARCH FOR A THEORY OF QUANTUM GRAVITY

    Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Roll, R., 1 Jul 2013, In: International Journal of Modern Physics D. 22, 9, 19 p., 1330019.

    Research output: Contribution to journalJournal articleResearchpeer-review

  71. Published

    The toroidal Hausdorff dimension of 2d Euclidean quantum gravity

    Ambjørn, Jan & Budd, T. G., 16 May 2013, In: Physics Letters B. 724, 4-5, p. 328-332

    Research output: Contribution to journalJournal articleResearchpeer-review

  72. Published

    2d CDT is 2d Horava-Lifshitz quantum gravity

    Ambjørn, Jan, Glaser, L., Sato, Y. & Watabiki, Y., 13 Mar 2013, In: Physics Letters B: Particle Physics, Nuclear Physics and Cosmology. 722, 1-3, p. 172-175

    Research output: Contribution to journalJournal articleResearchpeer-review

  73. 2012
  74. Published

    Semi-classical dynamical triangulations

    Ambjørn, Jan & Budd, T. G., 15 Nov 2012, In: Physics Letters B. 718, 1, p. 200-204 4 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  75. Published

    Nonperturbative quantum gravity

    Ambjørn, Jan, Goerlich, A., zJukiewic, J. & Loll, R., 1 Oct 2012, In: Physics Reports. 519, 4-5, p. 127-210 3 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  76. Published

    The transfer matrix in four-dimensional CDT

    Ambjørn, Jan, Gizbert-Studnicki, J., Gorlich, A. T. & Jurkiewicz, J., 1 Sep 2012, In: Journal of High Energy Physics (Online). 2012, 9, p. 017

    Research output: Contribution to journalJournal articleResearchpeer-review

  77. Published

    Second-and first-order phase transitions in causal dynamical triangulations

    Ambjørn, Jan, Jordan, S., Loll, R. & Jurkiewicz, J., 20 Jun 2012, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 85, 12, p. 124044

    Research output: Contribution to journalJournal articleResearchpeer-review

  78. Published

    New multicritical matrix models and multicritical 2d CDT

    Ambjørn, Jan, Glaser, L., Gorlich, A. & Sato, Y., 30 May 2012, In: Physics Letters B. 712, 1-2, p. 109-114

    Research output: Contribution to journalJournal articleResearchpeer-review

  79. Published

    Roaming moduli space using dynamical triangulations

    Ambjørn, Jan, Barkley, J. & Budd, T. G., 11 May 2012, In: Nuclear Physics B. 858, 2, p. 267-292

    Research output: Contribution to journalJournal articleResearchpeer-review

  80. Published

    Remarks on holographic Wilson loops and the Schwinger effect

    Ambjørn, Jan & Makeenko, Y., 5 Mar 2012, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 85, 6, p. 061901

    Research output: Contribution to journalJournal articleResearchpeer-review

  81. Published

    Pseudo-topological transitions in 2D gravity models coupled to massless scalar fields

    Ambjørn, Jan, Gorlich, A. T., Jurkiewicz, J. & Zhang, H., 2012, In: Nuclear Physics B. 863, 2, p. 421-434

    Research output: Contribution to journalJournal articleResearchpeer-review

  82. 2011
  83. Published

    Baby universes revisited

    Ambjørn, Jan, Barkley, J., Budd, T. & Loll, R., 30 Nov 2011, In: Physics Letters B. 706, 1, p. 86-89

    Research output: Contribution to journalJournal articleResearchpeer-review

  84. Published

    Second-order phase transition in causal dynamical triangulations

    Ambjørn, Jan, Jordan, S., Jurkiewicz, J. & Loll, R., 15 Nov 2011, In: Physical Review Letters. 107, 21, p. 211303

    Research output: Contribution to journalJournal articleResearchpeer-review

  85. Published

    The semiclassical limit of causal dynamical triangulations

    Ambjørn, Jan, Gorlich, A., Jurkiewicz, J., Gizbert-Studnicki, J. & Trzesniewski, T., 1 Aug 2011, In: Nuclear Physics B. 849, 1, p. 144-165 21 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  86. Published

    CDT as a scaling limit of matrix models

    Ambjørn, Jan, 1 May 2011, In: Acta Physica Polonica B. 42, 5, p. 923-937

    Research output: Contribution to journalConference articleResearchpeer-review

  87. 2010
  88. Published
  89. Published

    CDT meets Horova-Lifshitz gravity

    Ambjørn, Jan, Görlich, A., Jordan, S., Jurkiewicz, J. & Loll, R., 28 Jun 2010, In: Physics Letters B. 690, 4, p. 413-419 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  90. Published

    Geometry of the quantum universe

    Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 28 Jun 2010, In: Physics Letters B. 690, 4, p. 420-426 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  91. Published

    Causal random geometry from stochastic quantization: XI Latin American Workshop on Nonlinear Phenomena

    Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 5 Apr 2010, In: Journal of Physics - Conference Series. 246, 1, p. 012028 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  92. Published

    Deriving spacetime from first principles

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Apr 2010, In: Annalen der Physik. 19, 3-5, p. 186-195 9 p.

    Research output: Contribution to journalConference articleResearchpeer-review

  93. Published

    Quantum gravity as sum over spacetimes

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Feb 2010, In: Lecture Notes in Physics. 807, p. 59-124

    Research output: Contribution to journalJournal articleResearchpeer-review

  94. 2009
  95. Published

    New aspects of two-dimensional quantum gravity

    Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 1 Dec 2009, In: Acta Physica Polonica B. 40, 12, p. 3479-3507 35 p.

    Research output: Contribution to journalConference articleResearchpeer-review

  96. Published

    The self-organized de sitter universe

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Dec 2009, In: International Journal of Modern Physics D. 17, 13-14, p. 2515-2520 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  97. Published

    Stochastic quantization and the role of time in quantum gravity

    Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 5 Oct 2009, In: Physics Letters B. 680, 4, p. 359-364 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  98. Published

    Summing over all topological in CDT string field theory

    Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 13 Jul 2009, In: Physics Letters B. 678, 2, p. 227-232 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  99. Published

    Shaken, but not stirred: Potts model coupled to quantum gravity

    Ambjørn, Jan, Anagnostopoulos, K. N., Loll, R. & Pushkina, I., 21 Jan 2009, In: Nuclear Physics B. 807, 1-2, p. 251-264 19 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  100. 2008
  101. Published

    A new continuum limit of matrix models

    Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 18 Dec 2008, In: Physics Letters B. 670, 2, p. 224-230 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  102. Published

    The quantum universe

    Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 17 Dec 2008, In: Acta Physica Polonica B. 39, 12, p. 3309-3341 34 p.

    Research output: Contribution to journalConference articleResearchpeer-review

  103. Published

    A causal alternative for c=0 strings

    Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 2 Dec 2008, In: Acta Physica Polonica B. 39, 12, p. 3355-3364 10 p.

    Research output: Contribution to journalConference articleResearchpeer-review

  104. Published

    Nonpertubative quantum de Sitter universe

    Ambjørn, Jan, Görlich, A., Jurkiewicz, J. & Loll, R., 26 Sep 2008, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 78, 6, p. 063544

    Research output: Contribution to journalJournal articleResearchpeer-review

  105. Published

    A matrix model for 2D quantum gravity defined by causal dynamical triangulations

    Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 24 Jul 2008, In: Physics Letters B. 665, 4, p. 252-256 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  106. Published

    The self-organized quantum Universe

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 1 Jul 2008, In: Scientific American. 299, 1, p. 42-49 7 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  107. Published

    A string field theory based on causal dynamical triangulations

    Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 1 May 2008, In: Journal of High Energy Physics (Online). 2008, 5, p. 032

    Research output: Contribution to journalJournal articleResearchpeer-review

  108. Published

    Planckian birth of a quantum de Sitter universe

    Ambjørn, Jan, Goerlich, A., Jurkiewicz, J. & Loll, R., 7 Mar 2008, In: Physical Review Letters. 100, 9, p. 091304

    Research output: Contribution to journalJournal articleResearchpeer-review

  109. Published

    The nature of ZZ branes

    Ambjørn, Jan & Gesser, J. A., 24 Jan 2008, In: Physics Letters B. 659, 3, p. 718-722 5 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  110. Published

    Topology change in causal quantum gravity

    Ambjørn, Jan, Loll, R., Watabiki, Y., Westra, W. & Zohren, S., 2008, Proceedings of 17th Workshop on General Relativity and Gravitattion in Japan: Nagoya, Japan, 3-7 Dec 2007. 4 p.

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearch

  111. 2007
  112. Published

    Putting a cap on causality violations in causal dynamical triangulations

    Ambjørn, Jan, Ambjørn, Jan, Loll, R., Westra, W. & Zohren, S., 1 Dec 2007, In: Journal of High Energy Physics (Online). 2007, 12, p. 017

    Research output: Contribution to journalJournal articleResearchpeer-review

  113. Published

    Wilson loops in 2D noncommutative euclidean gauge theory: 2. 1/T expansion

    Ambjørn, Jan, Dubin, A. & Makeenko, Y., 22 Oct 2007, In: Journal of High Energy Physics (Online). 2007, 12, p. 079

    Research output: Contribution to journalJournal articleResearchpeer-review

  114. Published

    World-sheet dynamics of ZZ-branes

    Ambjørn, Jan, Gesser, J. A. & Gesser, J. A., 27 Sep 2007, In: Physics Letters B. 653, 5-6, p. 439-444 6 p.

    Research output: Contribution to journalJournal articleResearchpeer-review

  115. Published

    ZZ branes from a wroldsheet perspective

    Ambjørn, Jan & Gesser, J. A., 1 Jun 2007, In: Acta Physica Polonica B. 38, 13, Special Issue, p. 3993-4007 12 p.

    Research output: Contribution to journalConference articleResearchpeer-review

  116. 2006
  117. Published

    The emergence of background geometry from quantum fluctuations

    Ambjørn, Jan, Janik, R., Westra, W. & Zohren, S., 28 Sep 2006, In: Physics Letters B. 641, 1, p. 94-98

    Research output: Contribution to journalJournal articleResearchpeer-review

  118. Published

    The universe from scratch

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 30 Mar 2006, In: Contemporary Physics. 47, 2, p. 103-117

    Research output: Contribution to journalReviewResearchpeer-review

  119. Published

    Wrapping interactions and a new source of corrections to the spin-chain/string duality

    Ambjørn, Jan, Janik, R. A. & Kristjansen, Charlotte Fløe, 27 Feb 2006, In: Nuclear Physics B. 736, 3, p. 288-301

    Research output: Contribution to journalJournal articleResearchpeer-review

  120. Published

    Simplified tetrahedron equations: Fermionic realization

    Ambjørn, Jan, Khachatyan, S. & Sedrakyan, A., 6 Feb 2006, In: Nuclear Physics B. 734, 3, p. 287-303

    Research output: Contribution to journalJournal articleResearchpeer-review

  121. 2005
  122. Published

    The spectral dimension of the universe is scale dependent

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 21 Oct 2005, In: Physical Review Letters. 95, 17, p. 171301

    Research output: Contribution to journalJournal articleResearchpeer-review

  123. Published

    Reconstructing the universe

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 22 Sep 2005, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 72, 6, p. 064014

    Research output: Contribution to journalJournal articleResearchpeer-review

  124. Published

    The emergence of noncommutative target space in noncritical string theory

    Ambjørn, Jan & Janik, R. A., 1 Aug 2005, In: Journal of High Energy Physics (Online). 2005, 8, p. 057

    Research output: Contribution to journalJournal articleResearchpeer-review

  125. Published

    Semiclassical universe from first principles

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 10 Feb 2005, In: Physics Letters B. 607, 3-4, p. 205-213

    Research output: Contribution to journalJournal articleResearchpeer-review

  126. 2004
  127. Published

    Quantum rolling tachyon

    Ambjørn, Jan & Janik, R. A., 23 Dec 2004, In: Physics Letters B. 604, 3-4, p. 225-234

    Research output: Contribution to journalJournal articleResearchpeer-review

  128. Published

    The geometry of ZZ-branes

    Ambjørn, Jan, Arianos, S., Gesser, J. A. & Kawamoto, S., 14 Oct 2004, In: Physics Letters B. 599, 3-4, p. 306-312

    Research output: Contribution to journalJournal articleResearchpeer-review

  129. Published

    Emergence of a 4D world from causal quantum gravity

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 24 Sep 2004, In: Physical Review Letters. 93, 13, p. 131301

    Research output: Contribution to journalJournal articleResearchpeer-review

  130. Published

    Noncommutativity of the zero chemical potential limit and the thermodynamic limit in finite density systems

    Ambjørn, Jan, Anagnostopoulos, K. N., Nishimura, J. & Verbaarschot, J. M., 25 Aug 2004, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 70, 3, p. 035010

    Research output: Contribution to journalJournal articleResearchpeer-review

  131. Published

    An integrable model with a non-reducible three particle R-matrix

    Ambjørn, Jan, Khachatryan, S. & Sedrakyan, A., 30 Jul 2004, In: Journal of Physics A: Mathematical and Theoretical. 37, 30, p. 7397-7406

    Research output: Contribution to journalJournal articleResearchpeer-review

  132. Published

    Wilson loops in 2D noncommutative euclidean gauge theory 1. Perturbative expansion

    Ambjørn, Jan, Dubin, A. & Makeenko, Y., 1 Jul 2004, In: Journal of High Energy Physics (Online). 2004, 7, p. 044

    Research output: Contribution to journalJournal articleResearchpeer-review

  133. Published

    The factorization method for Monte Carlo simulations of systems with a complex action

    Ambjørn, Jan, Anagnostopoulos, K. N., Nishimura, J. & Verbaarschot, J. J. M., 29 Apr 2004, In: Nuclear physics B, Proceedings supplements. 129, p. 530-532

    Research output: Contribution to journalConference articleResearchpeer-review

  134. Published

    The decay of quantum D-branes

    Ambjørn, Jan & Janik, R. A., 25 Mar 2004, In: Physics Letters B. 584, 1-2, p. 155-162

    Research output: Contribution to journalJournal articleResearchpeer-review

  135. Published

    Renormalization of 3d quantum gravity from matrix models

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 19 Feb 2004, In: Physics Letters B. 581, 3-4, p. 255-262

    Research output: Contribution to journalJournal articleResearchpeer-review

  136. Published

    An intergrable model with non-reducible three partical R- matrix

    Ambjørn, Jan, Khachatryan, S. & Sedrakyan, A., 2004, In: Journal of Physics A: Mathematical and Theoretical (Print Edition). 37, 30, p. 7397-7406

    Research output: Contribution to journalJournal articleResearchpeer-review

  137. 2003
  138. Published

    Towards a diagrammatic derivation of the Veneziano-Yankielowicz-Taylor superpotential

    Ambjørn, Jan & Janik, R. A., 4 Sep 2003, In: Physics Letters B. 569, 1-2, p. 81-84

    Research output: Contribution to journalJournal articleResearchpeer-review

  139. Published

    String theory in electromagnetic fields

    Ambjørn, Jan, 1 Feb 2003, In: Journal of High Energy Physics (Online). 2003, 2, p. 026

    Research output: Contribution to journalJournal articleResearchpeer-review

  140. Published

    3-D lorentzian quantum gravity from the asymmetric ABAB matrix model

    Ambjørn, Jan, Jurkiewicz, J., Loll, R. & Vernizzi, G., 2003, In: Acta Physica Polonica B. 34, 10, p. 4667-4688

    Research output: Contribution to journalJournal articleResearchpeer-review

  141. 2002
  142. Published

    Stripes from (noncommutative) stars

    Ambjørn, Jan & Catteral, S., 28 Nov 2002, In: Physics Letters B. 549, 1-2, p. 253-259

    Research output: Contribution to journalJournal articleResearchpeer-review

  143. Published

    The factorization method for systems with a complex action. A test in random matrix theory for finite density QCD

    Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 1 Oct 2002, In: Journal of High Energy Physics (Online). 2002, 10, p. 062

    Research output: Contribution to journalJournal articleResearchpeer-review

  144. Published

    Interpolation between Open and Closed Strings - a BSFT Approach

    Ambjørn, Jan & Janik, R. A., 27 Jun 2002, In: Physics Letters B. 538, 1-2, p. 189-196

    Research output: Contribution to journalJournal articleResearchpeer-review

  145. Published

    3d Lorentzian, dynamically triangulated quantum gravity

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 28 May 2002, In: Nuclear physics B, Proceedings supplements. 106, p. 980-982

    Research output: Contribution to journalConference articleResearchpeer-review

  146. Published

    A Lorentzian cure for euclidean troubles

    Ambjørn, Jan, Dasgupta, A., Jurkiewicz, J. & Loll, R., 28 May 2002, In: Nuclear physics B, Proceedings supplements. 106, p. 977-979

    Research output: Contribution to journalConference articleResearchpeer-review

  147. Published

    On the Quantum Geometry of String Theory

    Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 28 May 2002, In: Nuclear Physics, Section B, Proceedings Supplements. 106, p. 965-967

    Research output: Contribution to journalConference articleResearchpeer-review

  148. Published

    Real-time dynamics of a hot Yang-Mills theory: A nummerical analysis

    Ambjørn, Jan & Anagnostopoulos, K. N., 28 May 2002, In: Nuclear Physics, Section B, Proceedings Supplements. 106, vol. 106, p. 546-548

    Research output: Contribution to journalConference articleResearchpeer-review

  149. Published

    Strings, Quantum Gravity and Non-commutative Geometry on the Lattice

    Ambjørn, Jan, 28 May 2002, In: Nuclear Physics, Section B, Proceedings Supplements. 106, p. 62-70

    Research output: Contribution to journalConference articleResearchpeer-review

  150. Published

    On the spontaneous breakdown of Lorentz symmetry in matrix models of superstrings

    Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 15 Apr 2002, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 65, 8 part b, p. 086001

    Research output: Contribution to journalJournal articleResearchpeer-review

  151. 2001
  152. Published

    Dynamically triangulating Lorentzian quantum gravity

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 3 Sep 2001, In: Nuclear Physics B. 610, 1-2, p. 347-382

    Research output: Contribution to journalJournal articleResearchpeer-review

  153. Published

    Lorentzian 3d gravity with wormholes via matrix models

    Ambjørn, Jan, Jurkiewicz, J., Loll, R. & Vernizzi, G., 1 Sep 2001, In: Journal of High Energy Physics (Online). 2001, 9, p. 022

    Research output: Contribution to journalJournal articleResearchpeer-review

  154. Published

    Nonperturbative 3d Lorentzian quantum gravity

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 15 Aug 2001, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 64, 4, p. 044011

    Research output: Contribution to journalJournal articleResearchpeer-review

  155. Published

    Integrable ladder t-J model with staggered shift of the spectral parameter

    Ambjørn, Jan, Amaudon, D., Sedrakyan, A. & Sorba, T., 3 Aug 2001, In: Journal of Physics A: Mathematical and Theoretical. 34, 30, p. 5887-5900

    Research output: Contribution to journalJournal articleResearchpeer-review

  156. Published

    High-temperature, classical, real-time dynamics of non-abelian gauge theories as seen by a computer

    Ambjørn, Jan, Anagnostopoulos, K. N. & Kransitz, A., 1 Jun 2001, In: Journal of High Energy Physics (Online). 2001, 6, p. 069

    Research output: Contribution to journalJournal articleResearchpeer-review

  157. Published

    Computer simulations of 3d Lorentzian quantum gravity

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 29 Apr 2001, In: Nuclear Physics, Section B, Proceedings Supplements. 94, p. 689-692

    Research output: Contribution to journalConference articleResearchpeer-review

  158. Published

    Simulating simplified versions of the IKKT matrix model

    Ambjørn, Jan, Anagnostopoulos, K. N., Hotta, T. & Nishimura, J., 29 Apr 2001, In: Nuclear Physics, Section B, Proceedings Supplements. 94, p. 685-688

    Research output: Contribution to journalConference articleResearchpeer-review

  159. Published

    Fermionization of the spin S Uimin-Lai-Sutherland model: generalization of supersymmetric t-J model to spin S

    Ambjørn, Jan, Karakhanyan, D., Mirumyan, M. & Sedrakyan, A., 9 Apr 2001, In: Nuclear Physics B. 599, 3, p. 547-560

    Research output: Contribution to journalJournal articleResearchpeer-review

  160. Published

    High Temperature, Classical, Real Time Dynamics of Nonabelian Gauge Theories as Seen by a Computer

    Ambjørn, Jan & Anagnostopoulos, K. N., 2001, In: JHEP. 0106, p. 069

    Research output: Contribution to journalJournal articleResearchpeer-review

  161. 2000
  162. Published

    Nonperturbative Lorentzian path integral for gravity

    Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 31 Jul 2000, In: Physical Review Letters. 85, 5, p. 924-927

    Research output: Contribution to journalJournal articleResearchpeer-review

  163. Published

    Large N dynamics of dimensionally reduced 4D SU(N) super Yang-Mills theory

    Ambjørn, Jan, Anagnostopoulos, K. N. & Nishimura, J., 1 Jul 2000, In: Journal of High Energy Physics (Online). 2000, 7, p. 013

    Research output: Contribution to journalJournal articleResearchpeer-review

  164. Published

    Monte Carlo studies of the IIB matrix model at large N

    Ambjørn, Jan, Anagnostopoulos, K. N., Bietenholz, W., Nishimura, J. & Hotta, T., 1 Jul 2000, In: Journal of High Energy Physics (Online). 2000, 7, p. 011

    Research output: Contribution to journalJournal articleResearchpeer-review

  165. Published

    Making the Gravitational Path Integral More Lorentzian, or Life Beyond Liouville Gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 1 Jun 2000, In: Nuclear physics B, Proceedings supplements. 88, p. 241-244

    Research output: Contribution to journalConference articleResearchpeer-review

  166. Published

    Nonperturbative dynamics of noncommutative gauge theory

    Ambjørn, Jan, Makeenko, Y. M., Nishimura, J. & Szabo, R. J., 11 May 2000, In: Physics Letters B. 480, 3-4, p. 399-408

    Research output: Contribution to journalJournal articleResearchpeer-review

  167. Published

    Recursive sampling simulations of 3D gravity coupled to scalar fermions

    Ambjørn, Jan, Boulatov, D. V., Kawamoto, N. & Watabiki, Y., 11 May 2000, In: Physics Letters B. 480, 3-4, p. 319-330

    Research output: Contribution to journalJournal articleResearchpeer-review

  168. Published

    Lattice gauge fields and discrete non-commutative Yang-Mills theory

    Ambjørn, Jan, Nishimura, J., Szabo, R. J. & Makeenko, Y. M., 1 May 2000, In: Journal of High Energy Physics (Online). 2000, 5, p. 023

    Research output: Contribution to journalJournal articleResearchpeer-review

  169. Published

    Connected correlators in random geometries

    Ambjørn, Jan, Bialas, P. & Jurkiewicz, J., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 736-738

    Research output: Contribution to journalConference articleResearchpeer-review

  170. Published

    On the phase diagram of 2d Lorentzian quantum gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 733-735

    Research output: Contribution to journalConference articleResearchpeer-review

  171. Published

    Recent analytical results in 4D-dynamical triangulations

    Ambjørn, Jan, Carfora, M., Marzuoli, A. & Villani, P., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 745-747

    Research output: Contribution to journalConference articleResearchpeer-review

  172. Published

    Vortex structure in abelian-projected lattice gauge theory

    Ambjørn, Jan, Greensite, J. P. & Griedt, J., 1 Apr 2000, In: Nuclear physics B, Proceedings supplements. 83-84, p. 467-469

    Research output: Contribution to journalConference articleResearchpeer-review

  173. Published

    The relation between Euclidean and Lorentzian 2D quantum gravity

    Ambjørn, Jan, Gonçalves Dias Correia, J. L., Kristjansen, Charlotte Fløe & Loll, R., 24 Feb 2000, In: Physics Letters B. 475, 4, p. 24-32

    Research output: Contribution to journalJournal articleResearchpeer-review

  174. Published

    Crossing the c=1 barrier in 2D Lorentzian quantum gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 15 Feb 2000, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 61, 4, p. 44010

    Research output: Contribution to journalJournal articleResearchpeer-review

  175. Published

    Vortex structure vs. monopole dominance in abelian-projected gauge theory

    Ambjørn, Jan, Greensite, J. P. & Giedt, J., 1 Feb 2000, In: Journal of High Energy Physics (Online). 2000, 2, p. 033

    Research output: Contribution to journalJournal articleResearchpeer-review

  176. Published

    Nonpertubative Dynamics of Noncommutative Gauge Theory

    Ambjørn, Jan, Nishimura, J., Szabo, R. J. & Makeenko, Y. M., 2000, In: Phys. Lett.. B480, p. 399

    Research output: Contribution to journalJournal articleResearchpeer-review

  177. 1999
  178. Published

    New perspective on matter coupling in 2D quantum gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Loll, R., 15 Nov 1999, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 60, 10, p. 104035

    Research output: Contribution to journalJournal articleResearchpeer-review

  179. Published

    Screening and D-brane dynamics in finite temperature superstring theory

    Ambjørn, Jan, Makeenko, Y. M., Semenoff, G. W. & Szabo, R. J., 15 Nov 1999, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 60, 10, p. 106009

    Research output: Contribution to journalJournal articleResearchpeer-review

  180. Published

    Bethe Ansatz and thermodynamic limit of affine quantum group invariant extensions of the t-J model

    Ambjørn, Jan, Avakyan, A., Hakobyan, T. & Sedrakyan, A., 1 Nov 1999, In: Journal of Mathematical Physics. 40, 11, p. 5687-5701

    Research output: Contribution to journalJournal articleResearchpeer-review

  181. Published

    Finite N matrix models of noncommutative gauge theory

    Ambjørn, Jan, Makeenko, Y. M., Nishimura, J. & Szabo, R. J., 1 Nov 1999, In: Journal of High Energy Physics (Online). 1999, 11, p. 029

    Research output: Contribution to journalJournal articleResearchpeer-review

  182. Published

    Abelian gauge fields coupled to simplicial quantum gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Jurkiewicz, J., 28 Oct 1999, In: Journal of High Energy Physics. 1999, 8, p. 016

    Research output: Contribution to journalJournal articleResearchpeer-review

  183. Published

    Connected correlators in quantum gravity

    Ambjørn, Jan, Bialas, P. & Jurkiewicz, J., 28 May 1999, In: Journal of High Energy Physics. 1999, 2, p. 005

    Research output: Contribution to journalJournal articleResearchpeer-review

  184. Published

    Four-dimensional gonihedric gauge spin system

    Ambjørn, Jan, Koutsoumbas, G. & Savvidy, G. W., 1 May 1999, In: EPL. 46, 3, p. 319-325

    Research output: Contribution to journalJournal articleResearchpeer-review

  185. Published

    Crumpled triangulations and critical points in 4D simplicial quantum gravity

    Ambjørn, Jan, Carfora, M., Gabrielli, D. & Marzuoli, A., 8 Mar 1999, In: Nuclear Physics B. 542, 1-2, p. 349-394

    Research output: Contribution to journalJournal articleResearchpeer-review

  186. Published

    Quantum geometry and diffusion

    Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L. & Watabiki, Y., 12 Feb 1999, In: Journal of High Energy Physics (Online). 1999, 11, p. 022

    Research output: Contribution to journalJournal articleResearch

  187. Published

    Euclidean and Lorentzian quantum gravity - lessons from two dimensions

    Ambjørn, Jan, Loll, R., Nielsen, J. L. & Rolf, J., 1 Feb 1999, In: Chaos, Solitons & Fractals. 10, 2-3, p. 177-195

    Research output: Contribution to journalJournal articleResearchpeer-review

  188. Published

    Thermodynamics of D0-branes in matrix theory

    Ambjørn, Jan, Makeenko, Y. M. & Semenoff, G. W., 7 Jan 1999, In: Physics Letters B. 445, 3-4, p. 307-315

    Research output: Contribution to journalJournal articleResearchpeer-review

  189. Published

    U(1) Lattice Gauge Theory and N = 2 Supersymmetric Yang-Mills Theory

    Ambjørn, Jan, Sasakura, N. & Espriu, D., 2 Jan 1999, In: Fortschritte der Physik. 47, 1-3, p. 287-292

    Research output: Contribution to journalJournal articleResearchpeer-review

  190. Published

    Quantum Geometry

    Ambjørn, Jan, 1999, Geometry in Present Day Science. p. 1-20

    Research output: Chapter in Book/Report/Conference proceedingReport chapterCommunication

  191. Published

    Two-Dimensional Quantum Geometry

    Ambjørn, Jan, Nielsen, J. L. & Rolf, J., 1999, In: Fortschr. Phys.. Vol. 47, p. 152-171

    Research output: Contribution to journalJournal articleResearchpeer-review

  192. 1998
  193. Published

    Non-perturbative Lorentzian quantum gravity, causality and topology change

    Ambjørn, Jan & Loll, R., 21 Dec 1998, In: Nuclear Physics B. 536, 1-2, p. 407-434

    Research output: Contribution to journalJournal articleResearchpeer-review

  194. Published

    The NBI matrix model of IIB Superstrings

    Ambjørn, Jan & Chekhov, L., 1 Dec 1998, In: Journal of High Energy Physics (Online). 1998, 12, p. 007

    Research output: Contribution to journalJournal articleResearch

  195. Published

    Center Disorder in the 3D Georgi-Glashow Model

    Ambjørn, Jan & Greensite, J., 1 May 1998, In: Journal of High Energy Physics (Online). 1998, 5, p. 004

    Research output: Contribution to journalJournal articleResearchpeer-review

  196. Published

    Complex zeros of the 2-d ising model on dynamical random lattices.

    Ambjørn, Jan, Anagnostopoulos, K. N. & Magnea, U., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 63, p. 751-753

    Research output: Contribution to journalJournal articleResearch

  197. Published

    Intrinsic geometric structure of c = -2 quantum gravity.

    Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y. & Yotsuji, K., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 63, p. 748-750

    Research output: Contribution to journalJournal articleResearch

  198. Published

    Sphaleron transition rate: recent numerical results

    Ambjørn, Jan & Krasnitz, A., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 63, p. 575-577

    Research output: Contribution to journalJournal articleResearchpeer-review

  199. Published

    The Concept of Time in 2D Quantum Gravity

    Ambjørn, Jan, Anagnostopoulos, K. N., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 1 Apr 1998, In: Journal of High Energy Physics. 1998, 4, 016.

    Research output: Contribution to journalJournal articleResearchpeer-review

  200. Published

    The quantum space-time of c > 0 2-d gravity.

    Ambjørn, Jan, Anagnostopoulos, K. N. & Thorleifsson, G., 1 Apr 1998, In: Nuclear physics B, Proceedings supplements. 60, p. 742-744

    Research output: Contribution to journalJournal articleResearch

  201. Published

    A new family of integrable extended multi-band Hubbard Hamiltonians

    Ambjørn, Jan, Sedrakyan, A., Avakyan, A. & Hakobyan, T., 7 Mar 1998, In: Modern Physics Letters A. 13, 7, p. 495-503

    Research output: Contribution to journalJournal articleResearchpeer-review

  202. Published

    The quantum space-time of c=-2 gravity

    Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y. & Yotsuji, K., 9 Feb 1998, In: Nuclear Physics B. 511, 3, p. 673-710

    Research output: Contribution to journalJournal articleResearch

  203. Published

    The spectral dimension of 2D quantum gravity

    Ambjørn, Jan, Boulatov, D., Nielsen, J. L., Rolf, J. J. & Watabiki, Y., 1 Feb 1998, In: Journal of High Energy Physics (Online). 1998, 02, p. 010

    Research output: Contribution to journalJournal articleResearch

  204. Published

    The Quantum Spacetime Of c>0 2d Gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Thorleifsson, G., 1998, In: Nucl. Phys. B (Proc.Suppl.). 63, p. 742-744

    Research output: Contribution to journalJournal articleResearch

  205. 1997
  206. Published

    Spikes in quantum Regge calculus

    Ambjørn, Jan, Nielsen, J. L., Rolf, J. J. & Savvidy, G., 1 Dec 1997, In: Classical and Quantum Gravity. 14, 12, p. 3225-3241

    Research output: Contribution to journalJournal articleResearch

  207. Published

    Improved determination of the classical sphaleron transition rate

    Ambjørn, Jan & Krasnitz, A., 24 Nov 1997, In: Nuclear Physics B. 506, 1-2, p. 387-403

    Research output: Contribution to journalJournal articleResearch

  208. Published

    U(1) lattice gauge theory and N=2 supersymmetric Yang-Mills theory

    Ambjørn, Jan, Sasakura, N. & Espriu, D., 20 Nov 1997, In: Modern Physics Letters A. 12, 35, p. 2665-2681

    Research output: Contribution to journalJournal articleResearchpeer-review

  209. Published

    The two-point function of c=-2 matter coupled to 2D quantum gravity

    Ambjørn, Jan, Kristjansen, Charlotte Fløe & Watabiki, Y., 3 Nov 1997, In: Nuclear Physics B. 504, 3, p. 555-578

    Research output: Contribution to journalJournal articleResearchpeer-review

  210. Published

    On the connection between 2d topological gravity and the reduced Hermitian matrix model

    Ambjørn, Jan, Harris, M. G. & Weis, M., 27 Oct 1997, In: Nuclear Physics B. 504, 1-2, p. 482-510

    Research output: Contribution to journalJournal articleResearch

  211. Published

    Noncritical string field theory for 2d quantum gravity coupled to (p,q)-conformal fields

    Ambjørn, Jan & Watabiki, Y., 20 Sep 1997, In: International Journal of Modern Physics A. 12, 23, p. 4257-4289

    Research output: Contribution to journalJournal articleResearchpeer-review

  212. Published

    Quantum Geometry of 2-D Gravity Coupled to Unitary Matter

    Ambjørn, Jan & Anagnostopoulos, K. N., 21 Jul 1997, In: Nuclear Physics B. 497, 1-2, p. 445-478

    Research output: Contribution to journalJournal articleResearch

  213. Published

    Singularities of the Partition Function for the Ising Model coupled to 2-D Quantum Gravity

    Ambjørn, Jan, Anagnostopoulos, K. N. & Magnea, U., 20 Jul 1997, In: Modern Physics Letters A. 12, 22, p. 1605-1628

    Research output: Contribution to journalJournal articleResearch

  214. Published

    Non-critical Open Strings beyond the Semiclassical Approximation

    Ambjørn, Jan, Hayasaka, K. & Nakayama, R., 7 Jun 1997, In: Modern Physics Letters A. 12, 17, p. 1241-1266

    Research output: Contribution to journalJournal articleResearch

  215. Published

    Quantum Geometry of Topological Gravity

    Ambjørn, Jan, Anagnostopoulos, K. N., Ichihara, T., Jensen, L., Kawamoto, N., Watabiki, Y. & Yotsuji, K., 3 Apr 1997, In: Physics Letters B. 397, 3-4, p. 177-184

    Research output: Contribution to journalJournal articleResearch

  216. Published

    Alternative Actions for Quantum Gravity and the Intrinsic Rigidity of the Space-Time

    Ambjørn, Jan, Savvidy, G. K. & Savvidy, K. G., 17 Feb 1997, In: Nuclear Physics B. 486, 1-2, p. 390-412

    Research output: Contribution to journalJournal articleResearch

  217. Published

    Spin-Spin Correlation Functions of Spin Systems Coupled to 2-D Quantum Gravity for 0 < c < 1

    Ambjørn, Jan, Anagnostopoulos, K. N., Magnea, U. & Thorleifsson, G., 1 Feb 1997, In: Nuclear Physics B. Supplement 53, p. 725-727

    Research output: Contribution to journalJournal articleResearch

  218. Published

    Noncritical String Field Theory for Two-D Quantum Gravity coupled to (p, q) Conformal Fields

    Ambjørn, Jan & Watabiki, Y., 1997, In: Int. J. Mod. Phys.. A12, p. 4257-4289

    Research output: Contribution to journalJournal articleResearch

  219. Published

    Quantum Geometry, a statistical field theory approach

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 1997, Monographs in Matematical Physics. p. 371

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  220. Published

    Quantum geometry: A statistical field theory point of view

    Durhuus, Bergfinnur, Ambjørn, Jan & Jónsson, T., 1997, Cambridge: Cambridge University Press. 363 p.

    Research output: Book/ReportBookResearchpeer-review

  221. Published

    The Geometry of Dynamical Triangulations

    Ambjørn, Jan, Carfora, M. & Marzuoli, A., 1997, Lecture Notes in Physics: N.s. M, Monographs 50. p. 197

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  222. Published

    The fractal Structure of Space-Time

    Ambjørn, Jan, 1997, Second International Sakharov Conference on Physics, Moscow, May 18.-25., 1996. Singapore, p. 235

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  223. 1996
  224. Published

    Supersymmetric matrix models and branched polymers

    Ambjørn, Jan, Makeenko, Y. & Zarembo, K., 30 Dec 1996, In: Nuclear Physics B. 482, 3, p. 660-674

    Research output: Contribution to journalJournal articleResearchpeer-review

  225. Published

    Geometrical interpretation of the Knizhnik-Polyakov-Zamolodchikov exponents

    Ambjørn, Jan, Anagnostopoulos, K., Magnea, U. & Thorleifsson, G., 28 Nov 1996, In: Physics Letters B. 388, 4, p. 713-719

    Research output: Contribution to journalJournal articleResearchpeer-review

  226. Published

    New universal spectral correlators

    Akemann, G. & Ambjørn, Jan, 21 Nov 1996, In: Journal of Physics A: Mathematical and Theoretical. 29, 22, p. L555-L560

    Research output: Contribution to journalJournal articleResearchpeer-review

  227. Published

    The measure in three dimensional Nambu-Goto string theory

    Ambjørn, Jan & Sedrakyan, A., 3 Oct 1996, In: Physics Letters B. 386, 1-4, p. 99-105

    Research output: Contribution to journalJournal articleResearchpeer-review

  228. Published

    Correlation functions in the multiple Ising model coupled to gravity

    Harris, M. G. & Ambjørn, Jan, 2 Sep 1996, In: Nuclear Physics B. 474, 3, p. 575-601

    Research output: Contribution to journalJournal articleResearchpeer-review

  229. Published

    Renormalisation group flow in an exactly solvable model with fluctuating geometry

    Ambjørn, Jan, Bialas, P. & Jurkiewicz, J., 27 Jun 1996, In: Physics Letters B. 379, 1-2, p. 93-98

    Research output: Contribution to journalJournal articleResearchpeer-review

  230. 1995
  231. Published

    The classical sphaleron transition rate exists and is equal to 1.1(awT)4

    Ambjørn, Jan & Krasnitz, A., 9 Nov 1995, In: Physics Letters B. 362, 1-4, p. 97-104

    Research output: Contribution to journalJournal articleResearch

  232. Published

    On the fractal structure of two-dimensional quantum gravity

    Ambjørn, Jan, Jurkiewicz, J. & Watabiki, Y., 6 Nov 1995, In: Nucl. Phys.. 454, 1-2, p. 313-342

    Research output: Contribution to journalJournal articleResearch

  233. Published

    Dynamical triangulations, a gateway to quantum gravity?

    Ambjørn, Jan, Jurkiewicz, J. & Watabiki, Y., 1 Nov 1995, In: Journal of Mathematical Physics. 36, 11, p. 6299-6339

    Research output: Contribution to journalJournal articleResearch

  234. Published

    Scaling in four-dimensional quantum gravity

    Ambjørn, Jan & Jurkiewicz, J., 2 Oct 1995, In: Nuclear Physics B. 451, 3, p. 643-676

    Research output: Contribution to journalJournal articleResearch

  235. Published

    Quantum gravity represented as dynamical triangulations

    Ambjørn, Jan, 1 Sep 1995, In: Classical and Quantum Gravity. 12, 9, p. 2079-2134

    Research output: Contribution to journalJournal articleResearch

  236. Published

    Scaling in quantum gravity

    Ambjørn, Jan & Watabiki, Y., 3 Jul 1995, In: Nuclear Physics B. 445, 1, p. 129-142

    Research output: Contribution to journalJournal articleResearch

  237. Published

    New critical phenomena in 2D quantum gravity

    Ambjørn, Jan, Thorleifsson, G. & Wexler, M., 10 Apr 1995, In: Nuclear Physics B. 439, 1-2, p. 187-204

    Research output: Contribution to journalJournal articleResearch

  238. Published

    Computational ergodicity in simplicial quantum gravity

    Ambjørn, Jan & Jurkiewicz, J., 1 Apr 1995, In: Physics Letters B. Supplement 42, p. 704-706

    Research output: Contribution to journalJournal articleResearch

  239. Published

    Intrinsic geometry of c = 1 random surfaces

    Ambjørn, Jan & Jurkiewicz, J., 1 Apr 1995, In: Nuclear Physics B. Suppl. 42, p. 701-703

    Research output: Contribution to journalJournal articleResearch

  240. Published

    Recent progress in the theory of random surfaces and simplicial quantum gravity

    Ambjørn, Jan, 1 Apr 1995, In: Nuclear Physics B. Suppl. 42, p. 3-16

    Research output: Contribution to journalJournal articleResearch

  241. Published

    Computational ergodicity of S4

    Ambjørn, Jan & Jurkiewicz, J., 23 Feb 1995, In: Physics Letters B. 345, 4, p. 435-440

    Research output: Contribution to journalJournal articleResearch

  242. Published

    Search for scaling dimensions for random surfaces with c = 1

    Ambjørn, Jan, Bialas, P., Burda, Z., Jurkiewicz, J. & Peterson, B., 12 Jan 1995, In: Physics Letters B. 342, 1-4, p. 58-65

    Research output: Contribution to journalJournal articleResearch

  243. Published

    A random surface theory with nontrivial gamma(string)

    Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Peterson, B., 5 Jan 1995, In: Physics Letters B. 341, 3-4, p. 286-292

    Research output: Contribution to journalJournal articleResearch

  244. Published

    A solvable 2D gravity model with Gamme greater than zero

    Durhuus, Bergfinnur, Ambjørn, Jan & Jónsson, T., 1995, In: Modern Physics Letters A. 9, p. 1221-1228

    Research output: Contribution to journalJournal articleResearchpeer-review

  245. Published

    Physics of c > 1 coupled to gravity

    Ambjørn, Jan, 1995, In: Proc. of XXVIII International Symposium Ahrenshoop. p. 116-127

    Research output: Contribution to journalJournal articleResearch

  246. Published

    Sphaleron-like transitions at high temperature

    Ambjørn, Jan, 1995, Proc. of NATO Advanced Research Workshop on Electroweak Physics and the Early Universe. p. 271-286

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  247. Published

    Two obstacles in quantum gravity

    Ambjørn, Jan, 1995, Proc. of the conference "Strings '93". p. 387-396

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  248. 1994
  249. Published

    2D quantum gravity coupled to renormalizable matter fields

    Ambjørn, Jan & Ghoroku, K., 30 Dec 1994, In: International Journal of Modern Physics A. 9, 32, p. 5689-5709

    Research output: Contribution to journalJournal articleResearch

  250. Published

    Generalized penner models to all genera

    Ambjørn, Jan, Kristjansen, Charlotte Fløe & Makeenko, Y., 15 Oct 1994, In: Physical Review D. 50, 8, p. 5193-5203

    Research output: Contribution to journalJournal articleResearchpeer-review

  251. Published

    Scaling with a modified Wilson action which suppresses Z2 antifacts in SU(2) lattice gauge theories

    Ambjørn, Jan & Thorleifsson, G., 1 Oct 1994, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 50, 7, p. 4715-4717

    Research output: Contribution to journalJournal articleResearch

  252. Published

    On the Exponential Bound in Four-Dimensional Simplicial Gravity

    Ambjørn, Jan & Jurkiewicz, J., 8 Sep 1994, In: Physics Letters B. 335, 3-4, p. 355-358

    Research output: Contribution to journalJournal articleResearch

  253. Published

    Z2 GAUGE MATTER COUPLED TO 4-D SIMPLICIAL QUANTUM-GRAVITY

    Ambjørn, Jan, Jurkiewicz, J., Blike, S., Burda, Z. & Petersson, T., 7 Sep 1994, In: Modern Physics Letters A. 9, 27, p. 2527-2541

    Research output: Contribution to journalJournal articleResearchpeer-review

  254. Published

    Level crossing for hot sphalerons

    Ambjørn, Jan, Farakos, K., Hands, S., Koutsoumas, G. & Thorleifsson, G., 22 Aug 1994, In: Nuclear Physics B. 425, 1-2, p. 39-66

    Research output: Contribution to journalJournal articleResearch

  255. Published

    A SOLVABLE 2D GRAVITY MODEL WITH ¿>0

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 30 Apr 1994, In: Modern Physics Letters A. 9, 13, p. 1221-1228

    Research output: Contribution to journalJournal articleResearchpeer-review

  256. Published

    Effective sampling of random surfaces by baby universe surgery

    Ambjørn, Jan, Bialas, P., Burda, Z., Jurkiewicz, J. & Petersson, B., 21 Apr 1994, In: Physics Letters B. 325, 3-4, p. 337-346

    Research output: Contribution to journalJournal articleResearch

  257. Published

    A universal fractal structure of 2d quantum gravity for c > 1

    Ambjørn, Jan & Thorleifsson, G., 3 Mar 1994, In: Physics Letters B. 323, 1, p. 7-12

    Research output: Contribution to journalJournal articleResearch

  258. Published

    Remarks about c>1 and D>2

    Ambjørn, Jan, 1 Mar 1994, In: Theoretical and Mathematical Physics. 98, 3, p. 219-226

    Research output: Contribution to journalJournal articleResearchpeer-review

  259. Published

    A solvable 2D gravity Model with Gamma greater than Zero

    Ambjørn, Jan, Durhuus, Bergfinnur & Jónsson, T., 1994, In: Modern Physics Letters A. 9, p. 1221-1228

    Research output: Contribution to journalJournal articleResearchpeer-review

  260. Published

    Barriers in Quantum Gravity

    Ambjørn, Jan, 1994, String Theory, Gauge Theory and Quantum Gravity 93. Singapore: World Scientific, p. 228-238

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  261. Published

    Electroweak Magnetism, W-condensation and Antiscreening

    Ambjørn, Jan & Olesen, P., 1994, Proceedings of the 4th Hellenic School on Elementary Particle Physics. Athens: National Technical University Press, p. 396-407

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  262. Published

    Problems in Quantum Gravity

    Ambjørn, Jan, 1994, Proceedings of the Workshop on Strings, Topological Field Theory and Matrix Models. Moscow, p. 241-250

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  263. Published

    Scaling with a modified Wilson action which suppresses Z(2) artifacts in SU(2) lattice gauge theories

    Ambjørn, Jan & Thorleifsson, G., 1994, In: Phys. REv.. D 50, p. 4715-4717

    Research output: Contribution to journalJournal articleResearch

  264. Published

    Z*U2 Gauge Matter Coupled to 4d Simplicial Quantum Gravity

    Ambjørn, Jan, Bilke, S., Burda, Z., Jurkiewicz, J. & Petersson, B., 1994, In: Mod. Phys. Lett.. A9, p. 2527-2533

    Research output: Contribution to journalJournal articleResearch

  265. 1993
  266. Published

    4-dimensional dynamically triangulated gravity coupled to matte

    Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 15 Oct 1993, In: Physical Review D. 48, 8, p. 3695-3703

    Research output: Contribution to journalJournal articleResearchpeer-review

  267. Published

    Four-dimensional dynamically triangulated gravity coupled to matter

    Ambjørn, Jan, BURDA, Z., JURKIEWICZ, J. & Kristjansen, Charlotte Fløe, 15 Oct 1993, In: Physical Review D. 48, 8, p. 3695-3703

    Research output: Contribution to journalJournal articleResearchpeer-review

  268. Published

    From one-matrix model to kontsevich model

    Ambjørn, Jan & Kristjansen, Charlotte Fløe, 28 Sep 1993, In: Modern Physics Letters A. 8, 30, p. 2875-2890

    Research output: Contribution to journalJournal articleResearchpeer-review

  269. Published

    Matrix model calculations beyond the spherical limit

    Ambjørn, Jan, Chekhov, L., Kristjansen, Charlotte Fløe & Makeenko, Y., 30 Aug 1993, In: Nuclear Physics B. 404, 1-2, p. 127-172

    Research output: Contribution to journalJournal articleResearchpeer-review

  270. Published

    Matter fields with c > 1 coupled to 2D gravity

    Ambjørn, Jan, Durhuus, Bergfinnur, Jónsson, T. & Thorleifsson, G., 21 Jun 1993, In: Nuclear Physics B. 398, 3, p. 568-592

    Research output: Contribution to journalJournal articleResearch

  271. Published

    Baby universes in 2D quantum gravity

    Ambjørn, Jan, Jain, S. & Thorleifsson, G., 10 Jun 1993, In: Physic Letters B. 307, 1-2, p. 34-39

    Research output: Contribution to journalJournal articleResearch

  272. Published

    Observing 4D baby universes in quantum gravity

    Ambjørn, Jan, Jain, S., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 13 May 1993, In: Physics Letters B. 305, 3, p. 208-213

    Research output: Contribution to journalJournal articleResearchpeer-review

  273. Published

    The 3D Ising model represented as random surfaces

    Ambjørn, Jan, Sedrakyan, A. & Thorleifsson, G., 15 Apr 1993, In: Physics Letters B. 303, 3-4, p. 327-333

    Research output: Contribution to journalJournal articleResearch

  274. Published

    Parity breaking at high temperature and density

    Ambjørn, Jan, Farakos, K. & Shaposhnikov, M. E., 29 Mar 1993, In: Nuclear Physics B. 393, 3, p. 633-657

    Research output: Contribution to journalJournal articleResearch

  275. Published

    Quantum gravity, dynamical triangulations and higher-derivative regularization

    Ambjørn, Jan, Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 29 Mar 1993, In: Nuclear Physics B. 393, 3, p. 601-629

    Research output: Contribution to journalJournal articleResearchpeer-review

  276. Published

    The theory of dynamical random surfaces with extrinsic curvature

    Ambjørn, Jan, Irbäck, A., Jurkiewicz, J. & Petersson, B., 29 Mar 1993, In: Nuclear Physics B. 393, 3, p. 571-600

    Research output: Contribution to journalJournal articleResearch

  277. Published

    Nonperturbative 2D quantum gravity and Hamiltonians unbounded from below

    Ambjørn, Jan & Kristjansen, Charlotte Fløe, 20 Mar 1993, In: International Journal of Modern Physics A. 8, 7, p. 1259-1281

    Research output: Contribution to journalJournal articleResearchpeer-review

  278. Published

    3-DIMENSIONAL SIMPLICIAL QUANTUM-GRAVITY COUPLED TO ISING MATTER

    Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 1 Mar 1993, In: Nuclear Physics B. Suppl. 30, p. 771-774

    Research output: Contribution to journalJournal articleResearchpeer-review

  279. Published

    Sphaleron topography

    Ambjørn, Jan & Farakos, K., 1 Mar 1993, In: Nuclear physics B, Proceedings supplements. 30, p. 711-714

    Research output: Contribution to journalJournal articleResearchpeer-review

  280. Published

    Matter Fields with c>1 coupled to 2D gravity

    Durhuus, Bergfinnur, Ambjørn, Jan, Jönsson, T. & Thorleifsson, G., 1993, In: Nuclear Physics B. 398, p. 568-592

    Research output: Contribution to journalJournal articleResearchpeer-review

  281. Published

    Three-dimensional Simplical Quantum Gravity Coupled to Ising Matter

    Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, C., 1993, In: Nucl. Phys. B (Proc.Suppl.). 30, p. 771-774

    Research output: Contribution to journalJournal articleResearch

  282. 1992
  283. Published

    3D quantum gravity coupled to matter

    Ambjørn, Jan, Burda, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 31 Dec 1992, In: Physics Letters B. 297, 3-4, p. 253-260

    Research output: Contribution to journalJournal articleResearchpeer-review

  284. Published

    Topography of the hot sphaleron transitions

    Ambjørn, Jan & Farakos, K., 12 Nov 1992, In: Physics Letters B. 294, 2, p. 248-256

    Research output: Contribution to journalJournal articleResearchpeer-review

  285. Published

    Higher genus correlators for the complex matrix model

    Ambjørn, Jan, Kristjansen, Charlotte Fløe & Makeenko, Y., 10 Nov 1992, In: Modern Physics Letters A. 7, 34, p. 3187-3202

    Research output: Contribution to journalJournal articleResearchpeer-review

  286. Published

    Quantum Gravity represented as Dynamical Triangulations

    Ambjørn, Jan, Burad, Z., Jurkiewicz, J. & Kristjansen, Charlotte Fløe, 1 Oct 1992, In: Acta Physica Polonica B. 23, 10, p. 991-1029

    Research output: Contribution to journalJournal articleResearchpeer-review

  287. Published

    Quantum gravity represented as dynamical triangulations

    Ambjørn, Jan, BURDA, Z., JURKIEWICZ, J. & Kristjansen, Charlotte Fløe, Oct 1992, In: Acta Physica Polonica B. 23, 10, p. 991-1030

    Research output: Contribution to journalJournal articleResearchpeer-review

  288. Published

    Higher genus correlators from the hermitian one-matrix model

    Ambjørn, Jan, Chekhov, L. & Makeenko, Y., 28 May 1992, In: Physics Letters B. 282, 3-4, p. 341-348

    Research output: Contribution to journalJournal articleResearch

  289. Published

    Stochastic quantization vs. KdV flows in two-dimensional quantum gravity

    Ambjørn, Jan, Johnson, C. V. & Morris, T. R., 4 May 1992, In: Nuclear Physics B. 374, 3, p. 496-510

    Research output: Contribution to journalJournal articleResearchpeer-review

  290. Published

    Three-dimensional simplicial quantum gravity

    Ambjørn, Jan & Varsted, S., 6 Apr 1992, In: Nuclear Physics B. 373, 2, p. 557-577

    Research output: Contribution to journalJournal articleResearchpeer-review

  291. Published

    Four-dimensional simplicial quantum gravity

    Ambjørn, Jan & Jurkiewicz, J., 19 Mar 1992, In: Physics Letters B. 278, 1-2, p. 42-50

    Research output: Contribution to journalJournal articleResearch

  292. Published

    The vacuum in three-dimensional simplicial quantum gravity

    Ambjørn, Jan, Boulatov, D. V., Krzywicki, A. & Varsted, S., 20 Feb 1992, In: Physics Letters B. 276, 4, p. 432-436

    Research output: Contribution to journalJournal articleResearchpeer-review

  293. Published

    Critical properties of the dynamical random surface with extrinsic curvature

    Ambjørn, Jan, Jurkiewicz, J., Varsted, S., Irback, A. & Petersson, B., 30 Jan 1992, In: Physics Letters B. 275, 3-4, p. 295-303

    Research output: Contribution to journalJournal articleResearch

  294. Published

    A new approach to three-dimensional quantum gravity..

    Ambjørn, Jan & Varsted, S., 1992, Workshop on random surfaces and 2-D quantum gravity, Barcelona, 1991. Amsterdam, p. 25-30

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  295. Published

    Regularized quantum gravity and string theory

    Ambjørn, Jan, 1992, Proc. on Random surfaces and 2-D quantum gravity, Barcelona, 1991... Amsterdam, p. 8-24

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  296. Published

    Spontaneous parity breaking in the early universe

    Ambjørn, Jan & Farakos, K., 1992, In: Nuclear Physics B. 26, p. 533-535

    Research output: Contribution to journalJournal articleResearch

  297. Published

    Spontaneous parity breaking of the electroweak theory in the early Universe..

    Ambjørn, Jan & Farakos, K., 1992, Workshop on Electroweak symmetry breaking. Singapore, p. 435-441

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  298. 1991
  299. Published

    On spontaneous parity breaking in three-dimensional Gauge- Higgs systems

    Ambjørn, Jan, Farakos, K. & Shaposhnikov, M. E., 30 Oct 1991, In: Modern Physics Letters A. 6, 33, p. 3099-3112

    Research output: Contribution to journalJournal articleResearchpeer-review

  300. Published

    Spiky higher genus strings

    Ambjørn, Jan, Bellini, A. & Johnston, D., 7 Sep 1991, In: Modern Physics Letters A. 6, 27, p. 2467-2474

    Research output: Contribution to journalJournal articleResearchpeer-review

  301. Published

    Entropy estimate in three-dimensional simplical quantum gravity

    Ambjørn, Jan & Varsted, J., 29 Aug 1991, In: Physics Letters B. 266, 3-4, p. 285-290

    Research output: Contribution to journalJournal articleResearchpeer-review

  302. Published

    Sphaleron transitions and Baryon asymmetry: A nummerical, real-time analysis

    Ambjørn, Jan, Askgaard, T., Porter, H. & Shaposhnikov, M. E., 15 Apr 1991, In: Nuclear Physics B. 353, 2, p. 346-378

    Research output: Contribution to journalJournal articleResearchpeer-review

  303. Published

    Dynamical triangulated fermionic surfaces

    Ambjørn, Jan & Varsted, S., 28 Mar 1991, In: Physics Letters B. 257, 3-4, p. 305-312

    Research output: Contribution to journalJournal articleResearchpeer-review

  304. Published

    W-condensate formation in high energy collisions

    Ambjørn, Jan & Olesen, Poul, 21 Mar 1991, In: Physics Letters B. 257, 1-2, p. 201-206

    Research output: Contribution to journalJournal articleResearchpeer-review

  305. Published

    Non-perturbative calculation of correlators in 2D quantum gravity

    Ambjørn, Jan & Greensite, J., 17 Jan 1991, In: Physics Letters B. 254, 1-2, p. 66-70

    Research output: Contribution to journalJournal articleResearchpeer-review

  306. Published

    2D gravity, random surfaces and all that

    Ambjørn, Jan, 1991, Lattica 90. Proc.Int.Conf. Lattice Field Theory,Tallahassee, Florida. Amsterdam, p. 701-710

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  307. Published

    Lattice measurement of sphaleron transitions

    Ambjørn, Jan, Askgaard, T., Porter, H. & Shaposhnikov, M. E., 1991, Lattice 90. Proc.Int.Conf. on Lattice Field Theory, Tallahassee, Florida. Amsterdam, p. 752-754

    Research output: Chapter in Book/Report/Conference proceedingBook chapterResearch

  308. Published

    Three-dimensional simplicial quantum gravity and generalised matrix models

    Durhuus, Bergfinnur, Ambjørn, Jan & Jónsson, T., 1991, In: Modern Physics Letters A. 6, 12, p. 1133-1146

    Research output: Contribution to journalJournal articleResearchpeer-review

  309. 1990
  310. Published

    Electroweak Magnetism- theory and applications

    Ambjørn, Jan & Olesen, Poul, 10 Dec 1990, In: International Journal of Modern Physics A. 5, 23, p. 4525-4557

    Research output: Contribution to journalJournal articleResearchpeer-review

  311. Published

    Multiloop correlators for two-dimensional quantum gravity

    Ambjørn, Jan, Juriekwcz, J. & Makeenko, Y. M., 29 Nov 1990, In: Physics Letters B. 251, 4, p. 517-524

    Research output: Contribution to journalJournal articleResearchpeer-review

  312. Published

    A non-perturbative definition of 2D quantum gravity by the fifth time action

    Ambjørn, Jan, Greensite, J. & Varsted, S., 25 Oct 1990, In: Physics Letters B. 249, 3-4, p. 411-416

    Research output: Contribution to journalJournal articleResearchpeer-review

  313. Published

    ROPERTIES OF LOOP EQUATIONS FOR THE HERMITIAN MATRIX MODEL AND FOR TWO-DIMENSIONAL QUANTUM GRAVITY

    Ambjørn, Jan & Makeenko, Y. M., 10 Sep 1990, In: Modern Physics Letters A. 5, 22, p. 1753-1783

    Research output: Contribution to journalJournal articleResearchpeer-review

  314. Published

    External field dependence in SU(2) lattice theory

    Ambjørn, Jan, Mitrjushkin, V. K. & Zadorozhny, A. M., 16 Aug 1990, In: Physics Letters B. 245, 3-4, p. 575-580

    Research output: Contribution to journalJournal articleResearchpeer-review

  315. Published

    Lattice simulations of electroweak sphaleron transitions in real time

    Ambjørn, Jan, Askgaard, T., Porter, H. & Shaposhnikov, M. E., 26 Jul 1990, In: Physics Letters B. 244, 3-4, p. 479-487

    Research output: Contribution to journalJournal articleResearchpeer-review

  316. Published

    Summing over all genera for d > 1: a toy model

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 26 Jul 1990, In: Physics Letters B. 244, 3-4, p. 403-412

    Research output: Contribution to journalJournal articleResearchpeer-review

  317. Published

    A comment on the nonperturbative d=1 string theory

    Ambjørn, Jan, Jurkiewicz, J. & Krzywcki, A., 5 Jul 1990, In: Physics Letters B. 243, 4, p. 373-377

    Research output: Contribution to journalJournal articleResearchpeer-review

  318. Published

    THE BOSONIC STRING REPRESENTED AS PHI-3 GRAPHS - NEW MONTE-CARLO SIMULATIONS

    Ambjørn, Jan, Boulatov, D. & Kazakov, V. A., 5 Jul 1990, In: Modern Physics Letters A. 5, 10, p. 771-785

    Research output: Contribution to journalJournal articleResearchpeer-review

  319. Published

    ASYMPTOTIC FREEON - AN EXAMPLE OF ELECTROWEAK MAGNETISM

    Ambjørn, Jan & Olesen, Poul, 1 Feb 1990, In: Acta Physica Polonica B. 21, 2, p. 109-117

    Research output: Contribution to journalJournal articleResearchpeer-review

  320. Published

    Computer simulation of the bosonic string

    Ambjørn, Jan, 1 Feb 1990, In: Acta Physica Polonica B. 21, 2, p. 101-107

    Research output: Contribution to journalJournal articleResearchpeer-review

  321. Published

    A random walk representation of the Dirac propagator

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 29 Jan 1990, In: Nuclear Physics B. 330, 2-3, p. 509-522

    Research output: Contribution to journalJournal articleResearchpeer-review

  322. Published

    A condensate solution of the electroweak theory which interpolates between the broken and the symmetric phase

    Ambjørn, Jan & Olesen, Poul, 22 Jan 1990, In: Nuclear Physics B. 330, 1, p. 193-204

    Research output: Contribution to journalJournal articleResearchpeer-review

  323. Published

    Asymptotic freon: An example on electroweak magnetism

    Ambjørn, Jan & Olesen, Poul, 1990, In: Acta Physica Polonica B. 21, 2, p. 109-117

    Research output: Contribution to journalJournal articleResearchpeer-review

  324. Published

    External field dependence in the SU(2) lattice theory

    Ambjørn, Jan, Mitrjushkin, V. K. & Zadorozhny, A. M., 1990, In: Physics Letters B. 245, p. 575-580

    Research output: Contribution to journalJournal articleResearchpeer-review

  325. Published

    New Monte Carlo simulations

    Ambjørn, Jan, Boulatov, F. & Kazakov, V. A., 1990, In: Modern Physics Letters A. 5, p. 771-785

    Research output: Contribution to journalJournal articleResearchpeer-review

  326. 1989
  327. Published

    Fermionized spin systems and the boson-fermion mapping in (2+1)-dimensional gauge theory

    Ambjørn, Jan & Semenoff, G. W., 3 Aug 1989, In: Physics Letters B. 226, 1-2, p. 107-112

    Research output: Contribution to journalJournal articleResearchpeer-review

  328. Published

    SU(2) lattice gauge theory with an external field

    Ambjørn, Jan, Mitrjushkin, V. K., Bornyakov, V. G. & Zadorozhny, A. M., 13 Jul 1989, In: Physics Letters B. 225, 1-2, p. 153-158

    Research output: Contribution to journalJournal articleResearchpeer-review

  329. Published

    Kinematical numerical study of the crumpling transition in crystalline surfaces

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 17 Apr 1989, In: Nuclear Physics B. 316, 3, p. 526-558

    Research output: Contribution to journalJournal articleResearchpeer-review

  330. Published

    Errata: J. Ambjørn and P. Olesen, A magnetic condensate solution of the classical electroweak theory, Phys. Lett. B 218 (1989) 67.

    Ambjørn, Jan, 13 Apr 1989, In: Physics Letters B. 220, 4, p. 659 1 p.

    Research output: Contribution to journalComment/debateResearchpeer-review

  331. Published

    Baryon asymmetry generation in the electroweak theory: A lattice study

    Ambjørn, Jan, Laursen, M. L. & Shaposhnikov, M. E., 10 Apr 1989, In: Nuclear Physics B. 316, 2, p. 483-508

    Research output: Contribution to journalJournal articleResearchpeer-review

  332. Published

    A renormalization group analysis of lattice models of two-dimensional membranes

    Ambjørn, Jan, Durhuus, Bergfinnur, Frohlich, J. & Jonsson, T., 1 Apr 1989, In: Journal of Statistical Physics. 55, 1-2, p. 29-85

    Research output: Contribution to journalJournal articleResearchpeer-review

  333. Published

    TRIANGULATED RANDOM SURFACES AS A REPRESENTATION OF NON-CRITICAL STRINGS

    Ambjørn, Jan, 1 Apr 1989, In: Acta Physica Polonica B. 20, 4, p. 313-320

    Research output: Contribution to journalJournal articleResearchpeer-review

  334. Published

    On electroweak magnetism

    Ambjørn, Jan & Olesen, Poul, 27 Mar 1989, In: Nuclear Physics B. 315, 3, p. 606-614

    Research output: Contribution to journalJournal articleResearchpeer-review

  335. Published

    A magnetic condensate solution of the classical electroweak theory

    Ambjørn, Jan & Olesen, Poul, 9 Feb 1989, In: Physics Letters B. 218, 1, p. 67-71

    Research output: Contribution to journalJournal articleResearchpeer-review

  336. 1988
  337. Published

    Superconducting cosmic strings and W condensation

    Ambjørn, Jan, Nielsen, N. K. & Olesen, Poul, 12 Dec 1988, In: Nuclear Physics B. 310, 3-4, p. 625-635

    Research output: Contribution to journalJournal articleResearchpeer-review

  338. Published

    Anti-screening of large magnetic fields by vector bosons

    Ambjørn, Jan & Olesen, Poul, 1 Dec 1988, In: Physics Letters B. 214, 4, p. 565-589

    Research output: Contribution to journalJournal articleResearchpeer-review

  339. Published

    Statistical mechanics of paths with curvature-dependent action

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 21 Feb 1988, In: Journal of Physics A: Mathematical and Theoretical. 21, 4, p. 981-1000

    Research output: Contribution to journalJournal articleResearchpeer-review

  340. Published

    Strings, Fields and Critical Phenomena

    Ambjørn, Jan, 10 Jan 1988, In: Fortschritte der Physik. 36, 8, p. 595-642

    Research output: Contribution to journalJournal articleResearchpeer-review

  341. 1987
  342. Published

    Regularized strings with extrinsic curvature

    Ambjørn, Jan, Durhuus, Bergfinnur, Frohlich, J. & Jonsson, T., 28 Dec 1987, In: Nuclear Physics B. 290, 4, p. 480-506

    Research output: Contribution to journalJournal articleResearchpeer-review

  343. Published

    Monte Carlo simulations of regularized bosonic strings

    Ambjørn, Jan, De Forcrand, P., Koukiou, F. & Petritis, D., 5 Nov 1987, In: Physics Letters B. 197, 4, p. 548-552

    Research output: Contribution to journalJournal articleResearchpeer-review

  344. Published

    Baryon asymmetry of the universe. A Monte Carlo study on the lattice

    Ambjørn, Jan, Laursen, M. & Shaposhnkov, M. E., 22 Oct 1987, In: Physics Letters B. 197, 1-2, p. 49-54

    Research output: Contribution to journalJournal articleResearchpeer-review

  345. Published

    Scaling of the string tension in a new class of regularized string theories

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 22 Jun 1987, In: Physical Review Letters. 58, 25, p. 2619-2622

    Research output: Contribution to journalJournal articleResearchpeer-review

  346. Published

    Random Paths with Curvature-Dependent Action

    Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 15 May 1987, In: EPL. 3, 10, p. 1059-1065

    Research output: Contribution to journalJournal articleResearchpeer-review

  347. Published

    Regularized bosonic strings need extrinsic curvature

    Ambjørn, Jan & Durhuus, Bergfinnur, 9 Apr 1987, In: Physics Letters B. 188, 2, p. 253-257

    Research output: Contribution to journalJournal articleResearchpeer-review

  348. 1986
  349. Published

    The complex langevin equation and Monte Carlo simulations of actions with static charges

    Ambjørn, Jan, Flensburg, M. & Peterson, C., 24 Nov 1986, In: Nuclear Physics B. 275, 3, p. 375-397

    Research output: Contribution to journalJournal articleResearchpeer-review

  350. Published

    The appearance of critical dimensions in regulated string theories (II)

    Ambjørn, Jan, Durhuus, Bergfinnur & Frohlich, J., 27 Oct 1986, In: Nuclear Physics B. 275, 2, p. 161-184

    Research output: Contribution to journalJournal articleResearchpeer-review

  351. Published

    The SU(2) chiral model in an external field: A complex stochastic process on a non-abelian group

    Ambjørn, Jan & Yang, S. K., 29 Sep 1986, In: Nuclear Physics B. 275, 1, p. 18-38

    Research output: Contribution to journalJournal articleResearchpeer-review

  352. Published

    The appearance of critical dimensions in regulated string theories

    Ambjørn, Jan, Durhuus, Bergfinnur, Frohlich, J. & Orland, P., 26 Jul 1986, In: Nuclear Physics B. 270, 3, p. 457-482

    Research output: Contribution to journalJournal articleResearchpeer-review

  353. 1985
  354. Published

    Numerical problems in applying the langevin equation to complex effective actions

    Ambjørn, Jan & Yang, S., 19 Dec 1985, In: Physics Letters B. 165, 1-3, p. 140-146

    Research output: Contribution to journalJournal articleResearchpeer-review

  355. Published

    Langevin simulations of configurations with static charges

    Ambjørn, Jan, Flensburg, M. & Peterson, C., 26 Sep 1985, In: Physics Letters B. 159, 4-6, p. 335-340

    Research output: Contribution to journalJournal articleResearchpeer-review

  356. Published

    Periodic skyrme solitons

    Zahed , I., Wirzba, A., Meissner, U. G., Pethick, C. J. & Ambjørn, Jan, 5 Mar 1985, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 31, 5, p. 1114-1118

    Research output: Contribution to journalJournal articleResearchpeer-review

  357. Published

    Classical versus semiclassical electroweak decay of a techniskyrmion

    Ambjørn, Jan & Rubakov, V. A., 20 Jan 1985, In: Nuclear Physics B. 256, 3, p. 434-448

    Research output: Contribution to journalJournal articleResearchpeer-review

  358. Published

    Diseases of triangulated random surface models, and possible cures

    Ambjørn, Jan, Durhuus, Bergfinnur & Frohlich, J., 16 Jan 1985, In: Nuclear Physics B. 257, 3, p. 433-449

    Research output: Contribution to journalJournal articleResearchpeer-review

  359. 1984
  360. Published

    Stochastic confinement and dimensional reduction (II). Three-dimensional SU(2) lattice gauge theory

    Ambjørn, Jan, Olesen, Poul & Peterson, C., 20 Nov 1984, In: Nuclear Physics B. 240, 4, p. 533-542

    Research output: Contribution to journalJournal articleResearchpeer-review

  361. Published

    Three-dimensional lattice gauge theory and strings

    Ambjørn, Jan, Olesen, Poul & Peterson, C., 24 Sep 1984, In: Nuclear Physics B. 244, 1, p. 262-276

    Research output: Contribution to journalJournal articleResearchpeer-review

  362. Published

    Stochastic confinement and dimensional reduction: (I). Four-dimensional SU(2) lattice gauge theory

    Ambjørn, Jan, Olesen, Poul & Peterson, C., 10 Sep 1984, In: Nuclear Physics B. 240, 2, p. 189-212

    Research output: Contribution to journalJournal articleResearchpeer-review

  363. Published

    Observation of a string in three-dimensional SU(2) lattice gauge theory

    Ambjørn, Jan, Olesen, Poul & Peterson, C., 2 Aug 1984, In: Physics Letters B. 142, 5-6, p. 410-414

    Research output: Contribution to journalJournal articleResearchpeer-review

  364. 1983
  365. Published

    Reduced lattice gauge theory in two dimensions

    Ambjørn, Jan, Durhuus, Bergfinnur & Olesen, Poul, 13 Oct 1983, In: Physics Letters B. 130, 1-2, p. 93-97

    Research output: Contribution to journalJournal articleResearchpeer-review

  366. Published

    Action principle of Bogoliubov coefficients

    Ambjørn, Jan, Hughes, R. J. & Nielsen, N. K., 1 Oct 1983, In: Annals of Physics. 150, 1, p. 92-113

    Research output: Contribution to journalJournal articleResearchpeer-review

  367. Published

    Properties of the vacuum. 2. Electrodynamic

    Ambjørn, Jan & Wolfram, S., 15 Aug 1983, In: Annals of Physics. 147, 1, p. 33-56

    Research output: Contribution to journalJournal articleResearchpeer-review

  368. Published

    Properties of the vacuum. I. Mechanical and thermodynamic

    Ambjørn, Jan & Wolfram, S., 15 Aug 1983, In: Annals of Physics. 147, 1, p. 1-32

    Research output: Contribution to journalJournal articleResearchpeer-review

  369. Published

    The axial anomaly and the lattice Dirac sea

    Ambjørn, Jan, Greensite, J. & Peterson, C., 11 Jul 1983, In: Nuclear Physics B. 221, 2, p. 381-408

    Research output: Contribution to journalJournal articleResearchpeer-review

  370. Published

    Gauge fields, BRS symmetry and the Casimir effect

    Ambjørn, Jan & Hughes, R. J., 23 May 1983, In: Nuclear Physics B. 217, 2, p. 336-348

    Research output: Contribution to journalJournal articleResearchpeer-review

  371. Published

    Canonical quantisation in non-Abelian background fields

    Ambjørn, Jan & Hughes, R. J., 2 Feb 1983, In: Annals of Physics. 145, 2, p. 340-377

    Research output: Contribution to journalJournal articleResearchpeer-review

  372. 1982
  373. Published

    String tensions for lattice gauge theories in 2 + 1 dimensions

    Ambjørn, Jan, Hey, A. & Otto, S., 25 Oct 1982, In: Nuclear Physics B. 210, 3, p. 347-368

    Research output: Contribution to journalJournal articleResearchpeer-review

  374. Published

    Particle creation in colour-electric fields

    Ambjørn, Jan & Hughes, R. J., 24 Jun 1982, In: Physics Letters B. 113, 4, p. 305-310

    Research output: Contribution to journalJournal articleResearchpeer-review

  375. Published

    Källen's theorem and the unphysical nature of abelian external fields in Yang-Mills theory

    Ambjørn, Jan & Hughes, R. J., 29 Mar 1982, In: Nuclear Physics B. 197, 1, p. 113-131

    Research output: Contribution to journalJournal articleResearchpeer-review

  376. 1981
  377. Published

    RESOLVING THE ON-SHELL AND OFF-SHELL AMBIGUITY OF PERTURBATIVE QCD USING SUM-RULES

    Ambjørn, Jan & Sakain, N., 5 Jan 1981, In: Zeitschrift fur Physik C-Particles and Fields. 8, 3, p. 221-231

    Research output: Contribution to journalJournal articleResearchpeer-review

  378. 1980
  379. Published

    T Hooft's non-Abelian magnetic flux has zero classical energy

    Ambjørn, Jan & Flyvbjerg, H., 1 Dec 1980, In: Physics Letters B. 97, 2, p. 241-245

    Research output: Contribution to journalJournal articleResearchpeer-review

  380. Published

    THE EFFECTIVE POTENTIAL AND THE BOUND-STATES FOR A CLASS OF 2 DIMENSIONAL GAUGE-THEORIES

    Ambjørn, Jan, 1 Dec 1980, In: Zeitschrift fur Physik C-Particles and Fields. 5, 1, p. 37-42

    Research output: Contribution to journalJournal articleResearchpeer-review

  381. Published

    Kinematics of periodic structures in SU(N) gauge theories

    Ambjørn, Jan, Felsager, B. & Olesen, Poul, 24 Nov 1980, In: Nuclear Physics B. 175, 2, p. 349-364

    Research output: Contribution to journalJournal articleResearchpeer-review

  382. Published

    A color magnetic vortex condensate in QCD

    Ambjørn, Jan & Olesen, Poul, 20 Oct 1980, In: Nuclear Physics B. 170, 2, p. 265-282

    Research output: Contribution to journalJournal articleResearchpeer-review

  383. Published

    On the formation of a random color magnetic quantum liquid in QCD

    Ambjørn, Jan & Olesen, Poul, 11 Aug 1980, In: Nuclear Physics B. 170, 1, p. 60-78

    Research output: Contribution to journalJournal articleResearchpeer-review

ID: 5868