Thermal Entanglement in a Two-Qubit Heisenberg XXZ Spin Chain Under a Single Pulse Magnetic Field

被引：3

作者：

Liu, Jia ^{[1
,2
]}

Du, Xiao-Hong ^{[1
]}

机构：

[1] Inner Mongolia Univ Sci & Technol, Sch Math Phys & Biol Engn, Baotou 014010, Peoples R China

[2] Key Lab Integrated Exploitat Bayan Obo Multimet R, Baotou 014010, Peoples R China

来源：

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2013年 / 52卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Thermal entanglement; Single pulse magnetic field; XXZ spin chain; QUANTUM COMPUTATION;

D O I：

10.1007/s10773-013-1550-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The thermal entanglement in a two-qubit Heisenberg XXZ spin chain is investigated under a single pulse magnetic field Bsin theta. The paper shows that the greater the contribution of the inhomogeneity on the exchange interaction, the higher thermal entanglement will be attained at the fixed temperature except the case that . J (z) significantly disturb the thermal entanglement in uniform case. When the structure of the spin system are given, changing the external magnetic field B can induce controllable entanglement. Our study may provide a useful tool to change the entanglement of spin chain system.

引用

页码：2623 / 2630

页数：8

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