title: Numerical study of the phase transitions in the two-dimensional Z(5) vector model.
abstract: We investigate the critical properties of the two-dimensional Z(5) vector model. For this purpose, we propose a cluster algorithm, valid for Z(N) models with odd values of N. The two-dimensional Z(5) vector model is conjectured to exhibit two phase transitions with a massless intermediate phase. We locate the position of the critical points and study the critical behavior across both phase transitions in details. In particular, we determine various critical indices and compare the results with analytical predictions.
authors: Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, 03680 Kiev, Ukraine. oleg@bitp.kiev.ua
authors: O
authors: O
authors: Borisenko
authors: G
authors: G
authors: Cortese
authors: R
authors: R
authors: Fiore
authors: M
authors: M
authors: Gravina
authors: A
authors: A
authors: Papa