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Thermal Entanglement in the Anisotropic Heisenberg XYZ Model with Different Dzyaloshinskii-Moriya Couplings |
| LI Da-Chuang, CAO Zhuo-Liang |
| Department of Physics, Hefei Teachers College, Hefei 230061School of Physics and Material Science, Anhui University, Hefei 230039 |
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| Cite this article: |
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LI Da-Chuang, CAO Zhuo-Liang 2009 Chin. Phys. Lett. 26 020309 |
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Abstract Thermal entanglement is investigated in a two-qubit Heisenberg XYZ system with different Dzyaloshinskii-Moriya (DM) couplings. It is shown that different DM interaction parameters have different influences on the entanglement and the critical temperature. In addition, according to the relation between the real coupling coefficients Jx and Jz, a more efficient DM control parameter can be obtained by adjusting the direction of DM interaction.
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| Keywords:
03.67.Lx
03.65.Ud
75.10.Jm
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Received: 19 November 2008
Published: 20 January 2009
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| PACS: |
03.67.Lx
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(Quantum computation architectures and implementations)
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03.65.Ud
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(Entanglement and quantum nonlocality)
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75.10.Jm
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(Quantized spin models, including quantum spin frustration)
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