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Entropy Squeezing in the Quantum Heisenberg XY Spin Chains

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【Author】 CHANG Ping, SHAO Bin, ZOU Jian(School of Science, Beijing Institute of Technology, Beijing 100081, China)

【机构】 School of Science ,Beijing Institute of Technology；

【摘要】 The time evolution of entropy squeezing for the two-qubit XYZ Heisenberg model in an external uniform magnetic field is investigated in the language of quantum information. The effect of different parameters such as magnetic field and anisotropy parameter on the properties of entropy squeezing and variance squeezing are discussed. It is shown that magnetic field and anisotropy parameter can enhance the entropy squeezing.更多还原

【Abstract】 The time evolution of entropy squeezing for the two-qubit XYZ Heisenberg model in an external uniform magnetic field is investigated in the language of quantum information. The effect of different parameters such as magnetic field and anisotropy parameter on the properties of entropy squeezing and variance squeezing are discussed. It is shown that magnetic field and anisotropy parameter can enhance the entropy squeezing.更多还原

【关键词】 entropy squeezing； Heisenberg chain； variance squeezing；
【Key words】 entropy squeezing； Heisenberg chain； variance squeezing；

【基金】 Sponsored by the National Natural Science Foundation of China(10374007)

【文献出处】 Journal of Beijing Institute of Technology ,北京理工大学学报(英文版) , 编辑部邮箱 ,2009年01期

【分类号】O413
【下载频次】30

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