Rigorous results for the quantum phase transitions in a dimerized S=1 ising lattice

被引：1

作者：

Wu, Haina ^{[1
,2
]}

Yang, Zhihua ^{[1
]}

Dai, Janhu ^{[1
]}

Ying, Heping ^{[1
]}

机构：

[1] Zhejiang Univ, Inst Modern Phys, Hangzhou 310027, Peoples R China

[2] Northeastern Univ, Coll Sci, Shenyang 110006, Peoples R China

来源：

MODERN PHYSICS LETTERS A | 2007年 / 22卷 / 7-10期

关键词：

statistical lattice model; dimerization; quantum phase transitions;

D O I：

10.1142/S0217732307023328

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We examine the ground state properties of a dimerized ferromagnetic S=1 Ising chain with single-ion crystal fields by mapping the model onto the dimerized S=1/2 Ising chain with transverse fields. We show that the system exhibits a series of Ising transitions depending on the dimerization strength of the crystal fields, while the critical points can be determined exactly.

引用

页码：727 / 731

页数：5

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