LARGE-SCALE NUMERICAL EVIDENCE FOR BOSE-CONDENSATION IN THE S = 1 ANTIFERROMAGNETIC CHAIN IN A STRONG-FIELD

被引：148

作者：

SORENSEN, ES ^{[1
]}

AFFLECK, I ^{[1
]}

机构：

[1] UNIV BRITISH COLUMBIA,CANADIAN INST ADV RES,VANCOUVER V6T 1Z1,BC,CANADA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.71.1633

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using the recently proposed density matrix renormalization group technique we show that the magnons in the S = 1 antiferromagnetic Heisenberg chain effectively behave as bosons that condense at a critical field h(c). We determine the spin-wave velocity, v = 2.49(l), as well as the gap DELTA = 0.4107(1)J.

引用

页码：1633 / 1636

页数：4

共 25 条

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