Thermal Entanglement of a Two-Qubit XXZ Heisenberg Chain with Dzialoshinski-Moriya Interaction  

作　　者：QIAN Li FANG Jian-Xing 

机构地区：[1]School of Physical Science and Technology, Suzhou University, Suzhou 215006, China

出　　处：《Communications in Theoretical Physics》2009年第11期817-819,共3页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No.10774108;the Special Research Foundation for the Doctoral Program of Higher Education under Grant No.20050285002

摘　　要：The effect of DziaJoshinski-Moriya （DM） interaction on thermal entanglement of a two-qubit XXZ spin chain in a homogenous magnetic field is investigated. It is found that the DM interaction can enhance thermal entanglement. When D is large enough, the entanglement can exist for larger temperatures and strong magnetic field.

关 键 词：XXZ spin chain DM interaction thermal entanglement 

分 类 号：O482.5[理学—固体物理] O413.1[理学—物理]