A new type of argument for the existence of an exact dimer ground state in S=1/2 quantum Heisenberg spin systems

被引：21

作者：

Kitatani, H ^{[1
]}

Oguchi, T ^{[1
]}

机构：

[1] TOKYO INST POLYTECH, ATSUGI, KANAGAWA 24302, JAPAN

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1996年 / 65卷 / 05期

关键词：

quantum Heisenberg spin system; ground state; dimer state;

D O I：

10.1143/JPSJ.65.1387

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new type of argument for the existence of an exact dimer ground state in a class of S = 1/2 quantum Heisenberg spin systems is presented which gives a necessary and sufficient conditions for the existence of an exact dimer ground state in contrast to the previous arguments which give only the sufficient conditions.

引用

页码：1387 / 1391

页数：5

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