Phase Structure of Dynamical Triangulation Models in Three Dimensions

Details Phase Structure of Dynamical Triangulation Models in Three Dimensions Phase Structure of Dynamical Triangulation Models in Three Dimensions

1997-12-09

arxiv.org/abs/hep-lat/9712011v1

Nucl.Phys. B523 (1998) 553-568

Physics

High Energy Physics

High Energy Physics - Lattice

Scientific paper

10.1016/S0550-3213(98)00142-4

The dynamical triangulation model of three-dimensional quantum gravity is shown to have a line of transitions in an expanded phase diagram which includes a coupling mu to the order of the vertices. Monte Carlo renormalization group and finite size scaling techniques are used to locate and characterize this line. Our results indicate that for mu < mu1 ~ -1.0 the model is always in a crumpled phase independent of the value of the curvature coupling. For mu < 0 the results are in agreement with an approximate mean field treatment. We find evidence that this line corresponds to first order transitions extending to positive mu. However, the behavior appears to change for mu > mu2 ~ 2-4. The simplest scenario that is consistent with the data is the existence of a critical end point.

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