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Thermal quantum discord in Heisenberg models with Dzyaloshinski-Moriya interaction
  • ISSN号：1674-1056
  • 期刊名称：《中国物理B：英文版》
  • 时间：0
  • 分类：O482.5[理学—固体物理;理学—物理] O482.51[理学—固体物理;理学—物理]
  • 作者机构：[1]School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China
  • 相关基金：Project supported by the National Natural Science Foundation of China （Grant Nos. 10905007 and 61078011） and the Fundamental Research Funds for the Central Universities.
作者： 王林成[1], 闫俊彦[1], 衣学喜[1]
关键词： DM相互作用, 海森堡模型, 量子纠缠, 和谐, 相互作用模型, 平衡状态, 系统, quantum discord, thermal equilibrium state, Heisenberg model, Dzyaloshinski-Moriya interaction
中文摘要：

We study the quantum discord of the bipartite Heisenberg model with the Dzyaloshinski-Moriya (DM) interaction in thermal equilibrium state and discuss the effect of the DM interaction on the quantum discord. The quantum entanglement of the system is also discussed and compared with quantum discord. Our results show that the quantum discord may reveal more properties of the system than quantum entanglement and the DM interaction may play an important role in the Heisenberg model.

英文摘要：

We study the quantum discord of the bipartite Heisenberg model with the Dzyaloshinski-Moriya （DM） interaction in thermal equilibrium state and discuss the effect of the DM interaction on the quantum discord. The quantum entanglement of the system is also discussed and compared with quantum discord. Our results show that the quantum discord may reveal more properties of the system than quantum entanglement and the DM interaction may play an important role in the Heisenberg model.

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期刊信息
  • 《中国物理B：英文版》
  • 中国科技核心期刊
  • 主管单位:中国科学院
  • 主办单位:中国物理学会和中国科学院物理研究所
  • 主编：欧阳钟灿
  • 地址：北京 中关村 中国科学院物理研究所内
  • 邮编：100080
  • 邮箱：
  • 电话：010-82649026 82649519
  • 国际标准刊号：ISSN：1674-1056
  • 国内统一刊号：ISSN：11-5639/O4
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:406