[1]翟孝月,李延标,马书云,等.横场中各向异性XY模型的部分熵和量子互熵[J].南京师大学报(自然科学版),2012,35(03):48-51.
　Zhai Xiaoyue,Li Yanbiao,Ma Shuyun.Partial Entropy and Mutual Entropy of Thermal Entanglement in Anisotropic XY Model in a Transverse Field[J].Journal of Nanjing Normal University(Natural Science Edition),2012,35(03):48-51.
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横场中各向异性XY模型的部分熵和量子互熵()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第35卷
期数:
2012年03期
页码:
48-51
栏目:
物理学
出版日期:
2012-09-20

文章信息/Info

Title:
Partial Entropy and Mutual Entropy of Thermal Entanglement in Anisotropic XY Model in a Transverse Field
作者:
翟孝月;李延标;马书云;
中国人民解放军理工大学理学院，江苏南京211101
Author(s):
Zhai Xiaoyue; Li Yanbiao; Ma Shuyun
Institute of Science,PLA University of Science and Technology,Nanjing 211101,China
关键词:
热纠缠; 部分熵; 量子互熵; 各向异性; XY 模型; 最近邻相互作用
Keywords:
thermal entanglement; partial entropy; mutual entropy; anisotropic; XY model; the nearest neighbor interaction
分类号:
O469;O413
摘要:
研究在一维各向异性XY模型中的热纠缠的熵的行为,发现在有限温度时,两子系统的部分熵不相等,同时给出部分熵随温度和最近邻相互作用的变化规律.然后引入量子互熵的概念来研究系统的熵,发现量子互熵随着温度的增加呈指数衰减趋势,同时也给出了量子互熵随温度和最近邻相互作用的变化规律.
Abstract:
By using the concept of partial entropy，we study the behaviors of the partial entropy of thermal entanglement in anisotropic XY model in a transverse field． It is found that the partial entropy of one subsystem isn’t equivalent to that of the other subsystem． We give the plots of partial entropy as function of temperature and the nearest neighbor interaction． Then we introduce the concept of mutual entropy． We study the mutual entropy of this model and find that the mutual entropy decays exponential with increased temperature． We also give the plots of mutual entropy as function of temperature and the nearest neighbor interaction．

参考文献/References:

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备注/Memo

备注/Memo:
基金项目: 中国人民解放军理工大学理学院青年科研基金( QN-SL-2010-10) ．通讯联系人: 翟孝月，讲师，研究方向: 凝聚态物理． E-mail: zhuyue81@ sina． com
更新日期/Last Update: 2013-03-11