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

doi:10.1088/1674-1056/19/9/090319

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

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

Erhan Albayrak

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

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/Abstract

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 J_{x_{=J_y≠J_z}}_{_{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 J_z 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 J_x=J_y≠J_z 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 J_z and lower values of B and b.

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

中图分类号:

0367

Erhan Albayrak. Thermal entanglement in two-qutrit spin-1 anisotropic Heisenberg model with inhomogeneous magnetic field[J]. 中国物理B, 2010, 19(9): 90319-090319.

Erhan Albayrak. Thermal entanglement in two-qutrit spin-1 anisotropic Heisenberg model with inhomogeneous magnetic field[J]. Chin. Phys. B, 2010, 19(9): 90319-090319.

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

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

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