期刊
JOURNAL OF STATISTICAL PHYSICS
卷 98, 期 3-4, 页码 551-588出版社
SPRINGER
DOI: 10.1023/A:1018611122166
关键词
Ising model; universal amplitude ratios; conformal field theory; torus; finite-size scaling; corrections to scaling; Monte Carlo; Swendsen-Wang algorithm; cluster algorithm
Using results from conformal field theory, we compute several universal amplitude ratios for the two-dimensional Ising model at criticality on a symmetric torus. These include the correlation-length ratio x* = lim(L-->infinity) xi(L)/L and the first four magnetization moment ratios V(2n) = [M(2n)]/[M(2)](n). As a corollary we get the first four renormalized 2n-point coupling constants for the massless theory on a symmetric torus, G(2n)*. We confirm these predictions by a high-precision Monte Carlo simulation.
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