A new phase structure in three-dimensional dynamical triangulation model

Abstract

We investigate a new phase structure of the three-dimensional dynamical triangulation model with an additional local term by Monte Carlo simulation. We find that the first order phase transition observed for the naive Einstein-Hilbert action terminates at a finite coefficient of the new term. The phase transition turns into second order at the endpoint, beyond which it becomes a crossover.

Comments: 3 pages, 3 EPS figures, uses espcrc2, talk presented at "Lattice'97", to appear in the proceedings