Non-perturbative Lorentzian Quantum Gravity, Causality and Topology Change

Details Non-perturbative Lorentzian Quantum Gravity, Causality and Topology Change Non-perturbative Lorentzian Quantum Gravity, Causality and Topology Change

1998-05-18

arxiv.org/abs/hep-th/9805108v1

Nucl.Phys. B536 (1998) 407-434

Physics

High Energy Physics

High Energy Physics - Theory

30 pages, 5 figures, Latex, uses psfig.sty

Scientific paper

10.1016/S0550-3213(98)00692-0

We formulate a non-perturbative lattice model of two-dimensional Lorentzian quantum gravity by performing the path integral over geometries with a causal structure. The model can be solved exactly at the discretized level. Its continuum limit coincides with the theory obtained by quantizing 2d continuum gravity in proper-time gauge, but it disagrees with 2d gravity defined via matrix models or Liouville theory. By allowing topology change of the compact spatial slices (i.e. baby universe creation), one obtains agreement with the matrix models and Liouville theory.

Affiliated with

Also associated with

No associations

Rating

Non-perturbative Lorentzian Quantum Gravity, Causality and Topology Change does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Non-perturbative Lorentzian Quantum Gravity, Causality and Topology Change, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-perturbative Lorentzian Quantum Gravity, Causality and Topology Change will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-628591