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Название: Monte Carlo Simulation of the Two-Dimensional Planar Model
Авторы: Bowen C., Hunter D.L., Jan N.
Journal of Statistical Physics, Vol. 69, Nos. 5/6, 1992. p. 1097-1113.
We present results for the two-dimensional planar model on the square lattice. We have developed a Monte Carlo routine which is more efficient than the single-spin-flip algorithms used previously. We report on the variation of the following quantities with temperature: specific heat, energy, magnetization, susceptibility, correlation function, helicity modulus, the density of vortex/antivortex pairs, the average distance between a vortex and its nearest antivortex, and the average distance between a vortex/antivortex pair and the nearest pair. Our results are in excellent agreement with the reliable results reported in the literature and are in accord with the general features of the Kosterlitz Thouless theory.