南京师大学报（自然科学版）2012，Vol.35Issue(3)：48-51,4.
横场中各向异性XY模型的部分熵和量子互熵
Partial Entropy and Mutual Entropy of Thermal Entanglement in Anisotropic XY Model in a Transverse Field
摘要
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.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Key words
thermal entanglement/partial entropy/mutual entropy/anisotropic/XY model/the nearest neighbor interaction分类
数理科学引用本文复制引用
翟孝月,李延标,马书云..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(3):48-51,4.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). （QN-SL-2010-10）
