Finite-size scaling corrections in two-dimensional Ising and Potts ferromagnets

被引：25
|
作者：
de Queiroz, SLA [1 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Fis, BR-21945970 Rio De Janeiro, Brazil
来源：
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2000年 / 33卷 / 04期
关键词：
D O I：
10.1088/0305-4470/33/4/306
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Finite-size corrections to scaling of critical correlation lengths and free energies of Ising and three-state Potts ferromagnets are analysed by numerical methods, on strips of width N sites of square, triangular and honeycomb lattices. Strong evidence is given that the amplitudes of the 'analytical' correction terms, N-2, identically zero for triangular and honeycomb Ising systems. For Potts spins, our results are broadly consistent with this lattice-dependent pattern of cancellations, though for correlation lengths non-vanishing (albeit rather small) amplitudes cannot be entirely ruled out.
引用
收藏
页码：721 / 729
页数：9
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