中国物理B ›› 2010, Vol. 19 ›› Issue (9): 90319-090319.doi: 10.1088/1674-1056/19/9/090319

• GENERAL • 上一篇    下一篇

Thermal entanglement in two-qutrit spin-1 anisotropic Heisenberg model with inhomogeneous magnetic field

Erhan Albayrak   

  1. Erciyes University, Department of Physics, 38039 Kayseri, Turkey
  • 收稿日期:2010-02-18 修回日期:2010-04-13 出版日期:2010-09-15 发布日期:2010-09-15

Thermal entanglement in two-qutrit spin-1 anisotropic Heisenberg model with inhomogeneous magnetic field

Erhan Albayrak   

  1. Erciyes University, Department of Physics, 38039 Kayseri, Turkey
  • Received:2010-02-18 Revised:2010-04-13 Online:2010-09-15 Published:2010-09-15

摘要: The thermal entanglement of a two-qutrit spin-1 anisotropic Heisenberg XXZ chain in an inhomogeneous magnetic field is studied in detail. The effects of the external magnetic field (B), a parameter b which controls the inhomogeneity of B, and the bilinear interaction parameters Jx=Jy≠Jz on the thermal variation of the negativity are studied in detail. It is found that negativity N decreases when the values of magnetic field, inhomogeneity b and temperature are increasing. In addition, N remains at higher temperatures for higher values of Jz and lower values of B and b.

Abstract: The thermal entanglement of a two-qutrit spin-1 anisotropic Heisenberg XXZ chain in an inhomogeneous magnetic field is studied in detail. The effects of the external magnetic field (B), a parameter b which controls the inhomogeneity of B, and the bilinear interaction parameters Jx=Jy≠Jz on the thermal variation of the negativity are studied in detail. It is found that negativity N decreases when the values of magnetic field, inhomogeneity b and temperature are increasing. In addition, N remains at higher temperatures for higher values of Jz and lower values of B and b.

Key words: negativity, XXZ model, thermal entanglement, qutrit, spin-1, magnetic field

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  • 0367