| Effects of Inhomogeneous Spin Coupling and Anisotropy on Thermal Entanglement |
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| 作者姓名： | 郭金良 黄晓理 宋鹤山 |
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| 作者单位： | School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 |
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| 基金项目： | Supported by National Natural Science Foundation of China under Grant No 10575017. |
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| 摘 要： | We study the thermal entanglement properties of a simple system that includes three spins inhomogeneously coupled between them with additional anisotropy in their couplings. The main result is the systematic analysis of the concurrence evolution as functions of inhomogeneity, anisotropy and temperature. By adjusting proportional factor of the interaction J and anisotropy parameter △, the comparison between concurrences C12 andC13 is also presented.
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| 关 键 词： | 自旋耦合 各向异性 热学 温度 |
| 收稿时间： | 2006-12-26 |
| 修稿时间： | 2006-12-26 |
Effects of Inhomogeneous Spin Coupling and Anisotropy on Thermal Entanglement |
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| GUO Jin-Liang,HUANG Xiao-Li,SONG He-Shan.Effects of Inhomogeneous Spin Coupling and Anisotropy on Thermal Entanglement[J].Chinese Physics Letters,2007,24(6):1448-1451. |
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| Authors: | GUO Jin-Liang HUANG Xiao-Li SONG He-Shan |
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| Affiliation: | School of Physics and Optoelectronic Technology, Dalian University of Technology, DMian 116024 |
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| Abstract: | We study the thermal entanglement properties of a simple system that includes three spins inhomogeneously coupled between them with additional anisotropy is their couplings. The main result is the systematic analysis of the concurrence evolution as functions of inhomogeneity, anisotropy and temperature. By adjusting proportional factor of the interaction J and anisotropy parameter A, the comparison between concurrences C12 and Cla is also presented. |
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| Keywords: | 03 65 Ud 03 67 Mn 75 10 Jm |
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