MATRIX FORMALISM FOR THE VBS-TYPE MODELS AND HIDDEN ORDER

被引：80

作者：

TOTSUKA, K

SUZUKI, M

机构：

[1] Dept. of Phys., Tokyo Univ.

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1995年 / 7卷 / 08期

关键词：

D O I：

10.1088/0953-8984/7/8/012

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We give a simple method to reduce the VBS-type states, usually expressed by the valence bonds, to the matrix-product representation. In this representation, peculiar properties of the VBS-type states are quite manifest. Using it, we investigate hidden order in the spin-S vss model. The possibility that the Haldane phase for higher spin S is characterized by string order parameters is discussed. A picture of an approximate excitation is also presented.

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页码：1639 / 1662

页数：24

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