The phase structure of pure Regge gravity

Details The phase structure of pure Regge gravity The phase structure of pure Regge gravity

1995-10-12

arxiv.org/abs/hep-lat/9510021v1

Nucl.Phys.Proc.Suppl. 47 (1996) 625-628

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, uuencoded gziped postscript file, contribution to LATTICE'95, Melbourne, Australia

Scientific paper

10.1016/0920-5632(96)00136-3

We examine the phase structure of pure Regge gravity in four dimensions and compare our Monte Carlo results with $Z_2$-link Regge-theory as well as with another formulation of lattice gravity derived from group theoretical considerations. Within all three models we find an extension of the well-defined phase to negative gravitational coupling and a new phase transition. In contrast to the well-known transition at positive coupling there is evidence for a continuous phase transition which might be essential for a possible continuum limit.

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