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题名: Quantum thermal discord in a two-spin-1/2 XXZ model
作者: Wang Qiong ;  Liao Jie-Qiao ;  Zeng Hao-Sheng
刊名: CHINESE PHYSICS B
出版日期: 2010
卷号: 19, 期号:10, 页码:-
关键词: ENTANGLEMENT ;  STATES ;  CHAIN
学科分类: Physics
通讯作者: Zeng, HS , Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Hunan, Peoples R China
部门归属: [Wang, QO; Zeng, HS] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Hunan, Peoples R China; [Wang, QO; Zeng, HS] Hunan Normal Univ, Dept Phys, Changsha 410081, Hunan, Peoples R China; [Liao, JQ] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We study the quantum discord in a two-spin-1/2 XXZ model in thermal equilibrium at temperature T in the presence of an external magnetic field B. Special attention is paid to the dependence of quantum discord on the temperature T and magnetic field B. It is found that quantum thermal discord is more robust than concurrence against temperature, in the sense that quantum thermal discord does not vanish at finite temperatures, but concurrence vanishes completely at a critical temperature.
资助者: National Fundamental Research Program of China[2007CB925204]; National Natural Science Foundation of China[10775048]; Chinese Ministry of Education[206103]; National Key Discipline
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000282923600016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5043
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Wang Qiong,Liao Jie-Qiao,Zeng Hao-Sheng. Quantum thermal discord in a two-spin-1/2 XXZ model[J]. CHINESE PHYSICS B,2010,19(10):-.
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