Thermal Entanglement in the Spin-S Heisenberg XYZ Model

被引：0

作者：

Li Hu ^{[1
]}

Li Da-Chuang ^{[1
,2
,3
,4
]}

Wang Xian-Ping ^{[5
]}

Yang Ming ^{[1
]}

Cao Zhuo-Liang ^{[1
,2
]}

机构：

[1] Anhui Univ, Sch Phys Mat Sci, Hefei 230039, Peoples R China

[2] Hefei Normal Univ, Sch Elect & Informat Engn, Hefei 230601, Peoples R China

[3] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

[4] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

[5] Fuyang Teachers Coll, Dept Phys, Fuyang 236041, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2014年 / 31卷 / 04期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

OPTICAL LATTICE; HALDANE-GAP; QUANTUM; CHAIN; MAGNETS; SYSTEMS; QUBITS;

D O I：

10.1088/0256-307X/31/4/040301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermal entanglement in the spin-S Heisenberg XYZ model is studied in detail by using the entanglement measure of negativity. The effects of spin on the thermal entanglement, the threshold temperature, the critical uniform external magnetic field, the nonuniform external magnetic field and the entanglement extremum are discussed, respectively. It is shown that with increasing spin, the entanglement will increase, and then decrease slowly. In addition, we find that entanglement will approach a constant N-c with the increase of DM interaction, the constant increases with the increase of spin, and both the threshold temperature T-c and critical uniform external magnetic field B-c will increase with the increasing spin. Thus high-spin system can inhibit the influence of the external environment better.

引用

页数：4

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