Jan Ambjørn

Jan Ambjørn

Professor, emeritus

ORCID: 0000-0003-3782-089X

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  1. 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 journal › Journal article › Research › peer-review

  2. 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 journal › Journal article › Research › peer-review

  3. 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 journal › Journal article › Research › peer-review

  4. 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 journal › Journal article › Research › peer-review

  5. 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 journal › Journal article › Research › peer-review

  6. 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 journal › Journal article › Research › peer-review

  7. 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 journal › Journal article › Research › peer-review

  8. 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 journal › Journal article › Research › peer-review

  9. Published

    On electroweak magnetism

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

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. 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 journal › Journal article › Research › peer-review

  11. 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 journal › Journal article › Research

  12. 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 journal › Conference article › Research › peer-review

  13. 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 journal › Journal article › Research

  14. 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 journal › Journal article › Research › peer-review

  15. 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 journal › Journal article › Research

  16. 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 journal › Conference article › Research › peer-review

  17. 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 journal › Journal article › Research › peer-review

  18. 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 journal › Journal article › Research

  19. 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 journal › Journal article › Research › peer-review

  20. 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 journal › Journal article › Research › peer-review

  21. 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 journal › Journal article › Research › peer-review

  22. 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 journal › Journal article › Research

  23. 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 journal › Journal article › Research › peer-review

  24. 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 proceeding › Book chapter › Research

  25. 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 journal › Journal article › Research › peer-review

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