Phase structure of twisted Eguchi-Kawai model

Details Phase structure of twisted Eguchi-Kawai model Phase structure of twisted Eguchi-Kawai model

2007-11-13

arxiv.org/abs/0711.1925v2

JHEP0801:025,2008

Physics

High Energy Physics

High Energy Physics - Lattice

17 pages, 7 figures, minor correction

Scientific paper

10.1088/1126-6708/2008/01/025

Twisted Eguchi-Kawai model is a useful tool for studying the large-N gauge theory. It can also provide a nonperturbative formulation of the gauge theory on noncommutative spaces. Recently it was found that the Z_N^4 symmetry in this model, which is crucial for the above applications, can break spontaneously in the intermediate coupling region. In this article, we study the phase structure of this model using the Monte-Carlo simulation. In particular, we elaborately investigate the symmetry breaking point from the weak coupling side. The simulation results show that we cannot take a continuum limit for this model.

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