Critical properties of 2D Z(N) vector models for N>4

Abstract

We investigate the critical properties of two-dimensional Z(N) vector models for N larger than 4. In particular, critical points of the two phase transitions are located and some critical indices are determined. We study also the behavior of the helicity modulus and the dependence of the critical points on N.

7 pages, 5 figures, poster contribution to the XXIX International Symposium on Lattice Field Theory, LATTICE 2011