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Effects of Inhomogeneous Spin Coupling and Anisotropy on Thermal Entanglement |
| GUO Jin-Liang;HUANG Xiao-Li;SONG He-Shan |
| School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024 |
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| Cite this article: |
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GUO Jin-Liang, HUANG Xiao-Li, SONG He-Shan 2007 Chin. Phys. Lett. 24 1448-1451 |
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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 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 and
C13 is also presented.
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| Keywords:
03.65.Ud
03.67.Mn
75.10.Jm
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Received: 26 December 2006
Published: 17 May 2007
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| PACS: |
03.65.Ud
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(Entanglement and quantum nonlocality)
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03.67.Mn
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(Entanglement measures, witnesses, and other characterizations)
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75.10.Jm
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(Quantized spin models, including quantum spin frustration)
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