GROUND-STATE SYMMETRY IN XY MODEL OF MAGNETISM

被引：31

作者：

MATTIS, DC

机构：

[1] Polytechnic Institute of New York, Brooklyn

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 23期

关键词：

D O I：

10.1103/PhysRevLett.42.1503

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Numerical studies by Betts and Oitmaa have led those authors to conjecture that in the XY model the ground-state magnetization Mz is zero. This is a model of spins on a lattice with interactions -J(SnxSmx+SnySmy), that can also describe a hard-sphere boson fluid. In the present note I prove the conjecture for arbitrary spins S=12, 1, 32, for positive J, and treat various generalizations. © 1979 The American Physical Society.

引用

页码：1503 / 1505

页数：3

共 8 条

[1] GROUND-STATE OF XY MAGNET AND HEISENBERG ANTIFERROMAGNET ON SQUARE LATTICE [J].