QUADRATIC QUANTUM ANTIFERROMAGNETS IN THE FERMIONIC LARGE-N LIMIT

被引：43

作者：

ROKHSAR, DS ^{[1
]}

机构：

[1] IBM CORP,THOMAS J WATSON RES CTR,DIV RES,YORKTOWN HTS,NY 10598

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.42.2526

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We show that SU(N) Heisenberg Hamiltonians with arbitrary-range quadratic antiferromagnetic couplings (i.e., H=(i,j)JijSi Sj0), with Jij>0) possess highly degenerate dimerized ground states in the fermionic infinite-N limit on a large class of lattices that includes all Bravais lattices in arbitrary dimension. These states break translational but not spin-rotational symmetry. © 1990 The American Physical Society.

引用

页码：2526 / 2531

页数：6

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