Abstract:The two-dimensional (2D) q-state clock model for q ≥ 5 undergoes two Berenzinskii-Kosterlitz-Thouless (BKT) phase transitions as temperature decreases. Here we report an extensive wormtype simulation of the square-lattice clock model for q = 5 to 9 in a pair of flow representations, respectively from the high-and low-temperature expansions. By finite-size scaling analysis of susceptibility-like quantities, we determine the critical points with a precision improving over the existing results. Thanks to the dual… Show more
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