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 new 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.

25 pages, 12 figures; version to appear on Phys. Rev. E; added two figures, an appendix, some text and a few references

References in corpus (2)

• Non-Kosterlitz-Thouless transitions for the $q$-state clock models
• The Binder Cumulant at the Kosterlitz-Thouless Transition

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