出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We investigate numerically the phase structure of the Twisted Eguchi-Kawai (TEK) model in four
dimensions. In the numerical simulations of the zero-temperature TEK model (using a symmetric
twist) we observe the existence of new phases that break its Z4N
symmetry at intermediate lattice
couplings and for large SU(N) gauge groups. This effect can be explained by the contribution
of diagonal configurations with collapsed eigenvalues, which are particular cases of “generalised
fluxons”. We also investigate finite-temperature versions of the TEK model using anisotropic
lattice couplings, where in particular we find van Baal fluxons contributing at large anisotropies.
