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横场中各向异性XY模型的部分熵和量子互熵

Zhai Xiaoyue,Li Yanbiao,Ma Shuyun

Journal of Nanjing Normal University(Natural Science Edition)（2012）

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Abstract
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.
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Key words
anisotropic,XY model,the nearest neighbor interaction,partial entropy,thermal entanglement,mutual entropy
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