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含有晶体场作用的混合XXZ自旋模型纠缠特性 被引量：1

Entanglement of the mixed-spin XXZ model with crystal field interaction
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摘要 通过引入Negativity概念,研究了含有晶体场相互作用的混合XXZ自旋模型的纠缠特性.讨论了温度T、晶体场相互作用d和各向异性参数Δ对纠缠度的影响.结果表明,温度T影响系统纠缠度的最大值N(ρ)max,温度越低N(ρ)max越大;晶体场相互作用和各向异性作用降低了系统纠缠度的最大值N(ρ)max,但是却提高了系统出现纠缠时的临界温度和纠缠度最大时的温度Tmax. Using the method of Negativity the entangle properties of the mixed-spin XXZ model with crystal field were studied. The influence of the temperature, the crystal field interaction and the anisotropic interaction to the entanglement were discussed. The results showed that the maximal entanglement increase with the decrease of the temperature. Both the crystal field d and the anisotropic △ decrease the maximal entanglement of the system. But the critical temperature of entanglement Tc and the maximal entanglement temperature Tmax were enhanced by d and △.
作者 张修兴 王菊霞 皇甫国庆 文军
机构地区 渭南师范学院物理系
出处 《原子与分子物理学报》 CAS CSCD 北大核心 2008年第1期149-154,共6页 Journal of Atomic and Molecular Physics
基金 陕西省自然科学基金(2004A19) 渭南师范学院科研基金(07YKZ002,06YKF012)
关键词 量子信息学 纠缠 NEGATIVITY XXZ模型 晶体场作用 quantum informatics, entanglement, negativity, XXZ model, crystal field interaction
分类号 O469 [理学—凝聚态物理]
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参考文献11

  • 1Yeo Y. Tdeportation via thermally entangled states of a two qubit Heisenberg ⅩⅩ chain[J]. Phys. Rev. A, 2002, 66:062312
  • 2Khveshchenko D V. Entanglement and decoherence in near-critical qubit chains[J]. Phys. Rev. B, 2003, 68: 193307
  • 3李永平.耦合双原子与压缩真空场Raman相互作用系统的量子纠缠[J].原子与分子物理学报,2006,23(5):919-925. 被引量：6
  • 4Loss D, Divincenzo D P. Quantum computation with quantum dots[J]. Phys. Rev. A, 1998, 57:120
  • 5Hill S, Wootters W K. Entanglement of a pair of quantum bits[J]. Phys. Rev. Lett., 1997, 78:5022
  • 6Arnesen M C, Bose S, Vedral V. Natural thermal and magnetic entanglementin the 1D Heisenberg model[J ]. Phys. Rev. Lett., 2001, 87:017901
  • 7Wang X G, Wang Z D. Thermal entanglement in ferromagnetic chains[J]. Phys. Rev.A, 2006, 73: 064302
  • 8Asoudeh M, Karimipour V. Thermal entanglement of spins in an inhomogenous magnetic field [ J ]. Phys. Rev. A, 2005, 71: 022308
  • 9Sun Y, Chen Y G, Chen H. Thermal entanglement in the two-qubit Heisenberg XY model under a nonuniform external magnetic field[J]. Phys. Rev. A,2003, 68: 044301
  • 10Peres A. Separability criterion for density matrics[J]. Phys. Rev. Lett, 1996, 77(8): 1413

二级参考文献5

  • 1[1]Einstein A,Podolsky B,Rosen N.Can quantum-mechanical description of physical reality be considered complete?[J].Phys.Rev.,1935,47:777
  • 2[2]Schrodinger E.Die gegenwartige situation in der quantenme chanik[J].Naturwissenschaften,1935,23:807
  • 3[3]Charles HB,David PD,Quantum information and computation[J].Nature,2000,404:247
  • 4[11]Phoenix S J D,Knight P L.Fluctuations and entropy in models of quantum optical resonance[J].Ann.Phys.,1988,186:381
  • 5[12]Phoenix S J D,Knight P L.Periodicity,phase and entropy in models of two-photon resonance[J].J.Opt.Soc.Am,1990,B7:116

共引文献5

同被引文献14

  • 1Hill S,Wootters W K.Entanglement of a pair of quantum bits[J].Phys.Rev.Lett.,1997,78:5022.
  • 2Arnesen M C,Bose S,Vedral V.Natural thermal and magnetic entanglement in the 1D Heisenberg model[J].Phys.Rev.Lett.,2001,87:017901.
  • 3Wang X G,Wang Z D.Thermal entanglement in ferromagnetic chains[J].Phys.Rev.A,2006,73:064302.
  • 4Wang X G.Entanglement in the quantum Heisenberg XY model[J].Phys.Rev.A,2001,64:012313.
  • 5Asoudeh M,Karimipour V.Thermal entanglement of spins in an inhomogenous magnetic field[J].Phys.Rev.A,2005,71:022308.
  • 6Sun Y,Chen Y G,Chen H.Thermal entanglement in the two qubits Heisenberg XY model under a nonuniform external magnetic field[J].Phys.Rev.A,2003,68:044301.
  • 7Osenda O,Huang Z,and Kais S.Tuning the entanglement for a one-dimensional magnetic system with anisotropic coupling and impurities[J].Phys.Rev.A,2003,67:062321.
  • 8Pachos J K,Plenio M B.Three-spin interactions in optical lattices and criticality in cluster Hamiltonians[J] ,Phys.Rev.Lett.,2004,93:056402.
  • 9Pachos J K,Rico E.Effective three-body interactions in triangular optical lattices[J] ,Phys.Rev.A,2004,70:053620.
  • 10Wootters W K.Entanglement of formation of an arbitrary state of two qubits[J].Phys.Rev.Lett.,1998,80:2245.

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原子与分子物理学报
2008年 第1期

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