Anisotropy and Magnetic Field Effects on Entanglement of a Two-Spin (1/2,1) Mixed-Spin Heisenberg XY Chain 被引量：3

Anisotropy and Magnetic Field Effects on Entanglement of a Two-Spin (1/2,1) Mixed-Spin Heisenberg XY Chain

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摘要 We study the entanglement in anisotropie （1/2,1） mixed-spin Heisenberg XY model under the presence of an external magnetic field at thermal equilibrium. By adjusting the anisotropic parameter and the magnetic field, one is able to obtain entanglement at higher temperature. We find the evidence of the quantum phase transition in the model and observe that the quantum phase transition point at low temperature moves toward weak magnetic field with the increase of the anisotropic parameter.

作者 WANG Fei FU Li-Ping GUO Ke-Tao

机构地区 School of Physical Science and Technology School of Applied Science

出处《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第8期341-344,共4页 理论物理通讯（英文版）

基金 supported by National Natural Science Foundation of China under Grant No.10674181

关键词 ENTANGLEMENT mixed-spin NEGATIVITY quantum phase transition 混合自旋缠结电负性哈异性磁域

分类号 O44 [理学—电磁学]

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参考文献26

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同被引文献20

1WANG Fei,JIA HongHui,ZHANG HaiLiang,ZHANG XueAo,CHANG ShengLi.Thermal entanglement in a mixed-spin Heisenberg XXZ model under a nonuniform external magnetic field[J].Science China(Physics,Mechanics & Astronomy),2009,52(12):1919-1924. 被引量：13
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引证文献3

1WANG Fei,JIA HongHui,ZHANG HaiLiang,ZHANG XueAo,CHANG ShengLi.Thermal entanglement in a mixed-spin Heisenberg XXZ model under a nonuniform external magnetic field[J].Science China(Physics,Mechanics & Astronomy),2009,52(12):1919-1924. 被引量：13
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二级引证文献17

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Communications in Theoretical Physics

2008年第8期

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Anisotropy and Magnetic Field Effects on Entanglement of a Two-Spin (1/2,1) Mixed-Spin Heisenberg XY Chain 被引量：3

参考文献26

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