TOPOLOGICAL VARIANTS OF LATTICE FIELD MODELS

被引：2

作者：

BRODY, DC

机构：

[1] The Blackett Laboratory, Imperial College, London

来源：

PHYSICA A | 1995年 / 213卷 / 03期

关键词：

D O I：

10.1016/0378-4371(94)00199-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The conventional Ising model is generalised so as to introduce a topological frustration for both ferromagnetic and antiferromagnetic cases. This generalisation is extended to a broad class of lattice field models, including the conventional XY model and classical Heisenberg model as special cases. Twisted external fields are also introduced in a manner symmetrical with respect to the intrinsic fields. The partition function and the two-point correlation function are explicitly determined for several varieties of twisted 1-dimensional chains with zero external field. Cohomological and fibre bundle interpretations are discussed.

引用

页码：315 / 336

页数：22