High-temperature expansions through order 24 for the two-dimensional classical XY model on the square lattice
classification
✦ hep-lat
cond-mat.stat-mech
keywords
orderclassicalhigh-temperaturelatticemodelsquaretwo-dimensionalanalyzed
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The high-temperature expansion of the spin-spin correlation function of the two-dimensional classical XY (planar rotator) model on the square lattice is extended by three terms, from order 21 through order 24, and analyzed to improve the estimates of the critical parameters.
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