Three-dimensional simplicial quantum gravity
Sep, 199121 pages
Published in:
- Nucl.Phys.B 373 (1992) 557-577
- Published: 1992
Report number:
- NBI-HE-91-45
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Abstract: (Elsevier)
We consider a discrete model of euclidean quantum gravity in three dimensions based on a summation over random simplicial manifolds. The phase diagram as a function of the cosmological coupling constant and the gravitational coupling constant is studied in the search for a sensible continuum limit. An interesting cross-over behaviour is observed, where the universes changes from being crumpled, of essentially zero radius, to being extended objects.- quantum gravity: simplex
- field theory: Euclidean
- dimension: 3
- cosmological constant
- critical phenomena
- partition function
- lattice field theory
- numerical calculations: Monte Carlo
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