Jan Ambjørn

Jan Ambjørn

Professor, emeritus


  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. 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

  11. 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

  12. 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

  13. 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

  14. 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

  15. 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

  16. 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

  17. 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

  18. 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

  19. 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

  20. 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

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

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