Sum over topologies and double-scaling limit in 2D Lorentzian quantum gravity

Classical and Quantum Gravity

Volumn 23, Issue 2, 2006, Pages 465-471

  Loll, R ^a   Westra, W ^a  

^a UTRECHT UNIVERSITY   (Netherlands)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 32644444121     PISSN: 02649381     EISSN: None     Source Type: Journal    
DOI: 10.1088/0264-9381/23/2/011     Document Type: Article

References (18)

1. http://www.maths.tcd.ie/pub/HistMath/People/Riemann/Geom
2. Wheeler J A 1957 On the nature of quantum geometrodynamics Ann. Phys. 2 604-14
3. Giddings S B 1990 The conformal factor and the cosmological constant Int. J. Mod. Phys. A 5 3811-30
4. Dasgupta A and Loll R 2001 A proper-time cure for the conformal sickness in quantum gravity Nucl. Phys. B 606 357-79 (Preprint hep-th/0103186)
5. David F 1995 Simplicial quantum gravity and random lattices Gravitation and Quantizations ed J Zinn-Justin and B Julia (Amsterdam: North-Holland) pp 679-750 (Preprint hep-th/9303127)
6. Di Francesco P, Ginsparg P and Zinn-Justin J 1995 2-D gravity and random matrices Phys. Rep. 254 1-133
7. Ambjørn J, Durhuus B and Jonsson T 1997 Quantum geometry Camb. Monogr. Math. Phys. 1 ch 4
8. Freidel L and Louapre D 2003 Nonperturbative summation over 3-d discrete topologies Phys. Rev. D 68 104004 (Preprint hep-th/0211026)
9. Douglas M R and Shenker S H 1990 Strings in less than one-dimension Nucl. Phys. B 335 635-54
10. Brézin E and Kazakov V A 1990 Exactly solvable field theories of closed strings Phys. Lett. B 236 144-50
11. Gross D J and Migdal A A 1990 Nonperturbative two-dimensional quantum gravity Phys. Rev. Lett. 64 127-30
12. Dowker F 2003 Topology change in quantum gravity The Future of Theoretical Physics and Cosmology ed G W Gibbons, E P S Shellard and S J Rankin (Cambridge: Cambridge University Press) pp 436-52 (Preprint gr-qc/0206020)
13. Ambjørn J and Loll R 1998 Non-perturbative Lorentzian quantum gravity, causality and topology change Nucl. Phys. B 536 407-34 (Preprint hep-th/9805108)
14. Ambjørn J, Anagnostopoulos K N and Loll R 2000 Crossing the c≤1 barrier in 2d Lorentzian quantum gravity Phys. Rev. D 61 044010 (Preprint hep-lat/9909129)
15. Ambjørn J, Jurkiewicz J and Loll R 2001 Nonperturbative 3d Lorentzian quantum gravity Phys. Rev. D 64 044011 (Preprint hep-th/0011276)
16. Louko J and Sorkin R D 1997 Complex actions in two-dimensional topology change Class. Quantum Grav. 14 179-204 (Preprint gr-qc/9511023)
17. Loll R and Westra W 2003 Space-time foam and the sum over topologies Acta Phys. Pol. B 34 4997-5008 (Preprint hep-th/0309012)
18. Loll R, Westra W and Zohren S 2005 Taming the cosmological constant in 2D causal quantum gravity with topology change Preprint hep-th/0507012