Jan Ambjørn

Jan Ambjørn

Professor, emeritus

ORCID: 0000-0003-3782-089X

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

  2. 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 journal › Journal article › Research

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

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

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

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

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

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

  9. 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 journal › Letter › Research › peer-review

  10. 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 journal › Journal article › Research

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

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

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

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

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

  16. 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 journal › Journal article › Research

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

  18. 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 proceeding › Book chapter › Research

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

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

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

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

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

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

  25. Published

    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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