Jan Ambjørn
Professor, emeritus
Theoretical high energy, astroparticle and gravitational physics
Blegdamsvej 17
2100 København Ø
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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. 991-1030Research output: Contribution to journal › Journal article › Research › peer-review
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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. 3695-3703Research output: Contribution to journal › Journal article › Research › peer-review
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New universal spectral correlators
Akemann, G. & Ambjørn, Jan, 21 Nov 1996, In: Journal of Physics A: Mathematical and Theoretical. 29, 22, p. L555-L560Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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. 470-476Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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A modified Friedmann equation
Ambjørn, Jan & Watabiki, Y., 28 Dec 2017, In: Modern Physics Letters A. 32, 40, 1750224.Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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. 339-343Research output: Contribution to journal › Journal article › Research › peer-review
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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. 359-364Research output: Contribution to journal › Journal article › Research › peer-review
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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. 226-246Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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Geodesic distances in Liouville quantum gravity
Ambjørn, Jan & Budd, T. G., 1 Dec 2014, In: Nuclear Physics, Section B. 889, p. 676-691Research output: Contribution to journal › Journal article › Research › peer-review
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A MATRIX MODEL FOR HYPERGEOMETRIC HURWITZ NUMBERS
Ambjørn, Jan & Chekhov, L. O., 1 Dec 2014, In: Teoreticheskaya i Matematicheskaya Fizika. 181, 3, p. 1486-1498Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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Creating 3, 4, 6 and 10-dimensional spacetime from W3 symmetry
Ambjørn, Jan & Watabiki, Y., 10 Jul 2017, In: Physics Letters B. 770, p. 252-256Research output: Contribution to journal › Journal article › Research › peer-review
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String theory as a Lilliputian world
Ambjørn, Jan & Makeenko, Y., 10 May 2016, In: Physics Letters B. 756, p. 142-146Research output: Contribution to journal › Journal article › Research › peer-review
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CDT and the big bang
Ambjørn, Jan & Watabiki, Y., 1 Apr 2017, In: Acta Physica Polonica B, Proceedings Supplement. 10, 2, p. 299-303Research output: Contribution to journal › Conference article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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. 191-194Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Letter › Research › peer-review
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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 journal › Journal article › Research › peer-review
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Scattering amplitudes of regularized bosonic strings
Ambjørn, Jan & Makeenko, Y., 30 Oct 2017, In: Physical Review D. 96, 8, 086024.Research output: Contribution to journal › Journal article › Research › peer-review
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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. 435-439Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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Stability of the nonperturbative bosonic string vacuum
Ambjørn, Jan & Makeenko, Y., 10 Jul 2017, In: Physics Letters B. 770, p. 352-356Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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A model for emergence of space and time
Ambjørn, Jan & Watabiki, Y., 7 Oct 2015, In: Physics Letters B. 749, p. 149-152Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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. 328-332Research output: Contribution to journal › Journal article › Research › peer-review
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Trees and spatial topology change in CDT
Ambjørn, Jan & Budd, T. G., 19 Jul 2013, In: Journal of Physics A: Mathematical and Theoretical. 46, 31Research output: Contribution to journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Review › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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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 journal › Journal article › Research › peer-review
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W-condensate formation in high energy collisions
Ambjørn, Jan & Olesen, Poul, 21 Mar 1991, In: Physics Letters B. 257, 1-2, p. 201-206Research output: Contribution to journal › Journal article › Research › peer-review
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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. 752-754Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Spontaneous parity breaking of the electroweak theory in the early Universe..
Ambjørn, Jan & Farakos, K., 1992, Workshop on Electroweak symmetry breaking. Singapore, p. 435-441Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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. 069Research output: Contribution to journal › Journal article › Research › peer-review
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Computer simulation of the bosonic string
Ambjørn, Jan, 1 Feb 1990, In: Acta Physica Polonica B. 21, 2, p. 101-107Research output: Contribution to journal › Journal article › Research › peer-review
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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. 396-407Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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. 172-175Research output: Contribution to journal › Journal article › Research › peer-review
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Physics of c > 1 coupled to gravity
Ambjørn, Jan, 1995, In: Proc. of XXVIII International Symposium Ahrenshoop. p. 116-127Research output: Contribution to journal › Journal article › Research
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Nonpertubative Dynamics of Noncommutative Gauge Theory
Ambjørn, Jan, Nishimura, J., Szabo, R. J. & Makeenko, Y. M., 2000, In: Phys. Lett.. B480, p. 399Research output: Contribution to journal › Journal article › Research › peer-review
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The Geometry of Dynamical Triangulations
Ambjørn, Jan, Carfora, M. & Marzuoli, A., 1997, Lecture Notes in Physics: N.s. M, Monographs 50. p. 197Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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. 4715-4717Research output: Contribution to journal › Journal article › Research
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The fractal Structure of Space-Time
Ambjørn, Jan, 1997, Second International Sakharov Conference on Physics, Moscow, May 18.-25., 1996. Singapore, p. 235Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Entropy estimate in three-dimensional simplical quantum gravity
Ambjørn, Jan & Varsted, J., 29 Aug 1991, In: Physics Letters B. 266, 3-4, p. 285-290Research output: Contribution to journal › Journal article › Research › peer-review
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External field dependence in the SU(2) lattice theory
Ambjørn, Jan, Mitrjushkin, V. K. & Zadorozhny, A. M., 1990, In: Physics Letters B. 245, p. 575-580Research output: Contribution to journal › Journal article › Research › peer-review
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Spiky higher genus strings
Ambjørn, Jan, Bellini, A. & Johnston, D., 7 Sep 1991, In: Modern Physics Letters A. 6, 27, p. 2467-2474Research output: Contribution to journal › Journal article › Research › peer-review
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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. 346-378Research output: Contribution to journal › Journal article › Research › peer-review
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Quantum Geometry, a statistical field theory approach
Ambjørn, Jan, Durhuus, Bergfinnur & Jonsson, T., 1997, Monographs in Matematical Physics. p. 371Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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The Quantum Spacetime Of c>0 2d Gravity
Ambjørn, Jan, Anagnostopoulos, K. N. & Thorleifsson, G., 1998, In: Nucl. Phys. B (Proc.Suppl.). 63, p. 742-744Research output: Contribution to journal › Journal article › Research
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2D gravity, random surfaces and all that
Ambjørn, Jan, 1991, Lattica 90. Proc.Int.Conf. Lattice Field Theory,Tallahassee, Florida. Amsterdam, p. 701-710Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Barriers in Quantum Gravity
Ambjørn, Jan, 1994, String Theory, Gauge Theory and Quantum Gravity 93. Singapore: World Scientific, p. 228-238Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Two-Dimensional Quantum Geometry
Ambjørn, Jan, Nielsen, J. L. & Rolf, J., 1999, In: Fortschr. Phys.. Vol. 47, p. 152-171Research output: Contribution to journal › Journal article › Research › peer-review
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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. 771-774Research output: Contribution to journal › Journal article › Research
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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. 2527-2533Research output: Contribution to journal › Journal article › Research
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Dynamical triangulated fermionic surfaces
Ambjørn, Jan & Varsted, S., 28 Mar 1991, In: Physics Letters B. 257, 3-4, p. 305-312Research output: Contribution to journal › Journal article › Research › peer-review
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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. 7397-7406Research output: Contribution to journal › Journal article › Research › peer-review
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Non-perturbative calculation of correlators in 2D quantum gravity
Ambjørn, Jan & Greensite, J., 17 Jan 1991, In: Physics Letters B. 254, 1-2, p. 66-70Research output: Contribution to journal › Journal article › Research › peer-review
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Spontaneous parity breaking in the early universe
Ambjørn, Jan & Farakos, K., 1992, In: Nuclear Physics B. 26, p. 533-535Research output: Contribution to journal › Journal article › Research
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Regularized quantum gravity and string theory
Ambjørn, Jan, 1992, Proc. on Random surfaces and 2-D quantum gravity, Barcelona, 1991... Amsterdam, p. 8-24Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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. 25-30Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Two obstacles in quantum gravity
Ambjørn, Jan, 1995, Proc. of the conference "Strings '93". p. 387-396Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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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. 4667-4688Research output: Contribution to journal › Journal article › Research › peer-review
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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. 4257-4289Research output: Contribution to journal › Journal article › Research
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Is the present acceleration of the Universe caused by merging with other universes?
Ambjørn, Jan & Watabiki, Y., 12 Dec 2023, In: Journal of Cosmology and Astroparticle Physics. 2023, 12, 20 p., 011.Research output: Contribution to journal › Journal article › Research › peer-review
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Quantum Geometry
Ambjørn, Jan, 1999, Geometry in Present Day Science. p. 1-20Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Communication
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A solvable 2D gravity Model with Gamma greater than Zero
Ambjørn, Jan, Durhuus, Bergfinnur & Jónsson, T., 1994, In: Modern Physics Letters A. 9, p. 1221-1228Research output: Contribution to journal › Journal article › Research › peer-review
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Asymptotic freon: An example on electroweak magnetism
Ambjørn, Jan & Olesen, Poul, 1990, In: Acta Physica Polonica B. 21, 2, p. 109-117Research output: Contribution to journal › Journal article › Research › peer-review
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Problems in Quantum Gravity
Ambjørn, Jan, 1994, Proceedings of the Workshop on Strings, Topological Field Theory and Matrix Models. Moscow, p. 241-250Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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New Monte Carlo simulations
Ambjørn, Jan, Boulatov, F. & Kazakov, V. A., 1990, In: Modern Physics Letters A. 5, p. 771-785Research output: Contribution to journal › Journal article › Research › peer-review
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Sphaleron-like transitions at high temperature
Ambjørn, Jan, 1995, Proc. of NATO Advanced Research Workshop on Electroweak Physics and the Early Universe. p. 271-286Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research
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Reconstructing the universe
Ambjørn, Jan, Jurkiewicz, J. & Loll, R., 22 Sep 2005, In: Physical Review D (Particles, Fields, Gravitation and Cosmology). 72, 6, p. 064014Research output: Contribution to journal › Journal article › Research › peer-review
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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. 029Research output: Contribution to journal › Journal article › Research › peer-review
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Dynamical triangulations, a gateway to quantum gravity?
Ambjørn, Jan, Jurkiewicz, J. & Watabiki, Y., 1 Nov 1995, In: Journal of Mathematical Physics. 36, 11, p. 6299-6339Research output: Contribution to journal › Journal article › Research
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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 journal › Journal article › Research › peer-review
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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. 496-510Research output: Contribution to journal › Journal article › Research › peer-review
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Three-dimensional simplicial quantum gravity
Ambjørn, Jan & Varsted, S., 6 Apr 1992, In: Nuclear Physics B. 373, 2, p. 557-577Research output: Contribution to journal › Journal article › Research › peer-review
- 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. 211303Research output: Contribution to journal › Journal article › Research › peer-review
- 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 journal › Journal article › Research › peer-review
- 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. 044011Research output: Contribution to journal › Journal article › Research › peer-review
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Recent progress in the theory of random surfaces and simplicial quantum gravity
Ambjørn, Jan, 1 Apr 1995, In: Nuclear Physics B. Suppl. 42, p. 3-16Research output: Contribution to journal › Journal article › Research
ID: 5868
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Signature change of the metric in CDT quantum gravity?
Research output: Contribution to journal › Journal article › Research › peer-review
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246
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A model for emergence of space and time
Research output: Contribution to journal › Journal article › Research › peer-review
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String theory as a Lilliputian world
Research output: Contribution to journal › Journal article › Research › peer-review
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