【摘 要】
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The negativity (N) as a measure of thermal entanglement (TE) is studied for a two-qutrit spin-1 anisotropic Heisenberg XXZ chain with Dzyaloshinskii-Moriya (DM)
【机 构】
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Erciyes University, Department of Physics, 38039, Kayseri, Turkey
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The negativity (N) as a measure of thermal entanglement (TE) is studied for a two-qutrit spin-1 anisotropic Heisenberg XXZ chain with Dzyaloshinskii-Moriya (DM) interaction in an inhomogeneous magnetic field in detail.The effects of the DM interaction parameter Dz on the thermal variation of the N for given values of the exteal magnetic Reid B, a parameter b which controls the inhomogeneity of B and the bilinear interaction parameters Jx = Jy ≠ Jz are obtained.It is found that N persists to higher values and to higher temperatures for the higher values of ±DZ and for the higher positive values of Jz, i.e.in the antiferromagnetic (AFM) case.When Jz < 0, the ferromagnetic (FM) case, and Dz is small, and if Jz is strong enough to compete with Dz, N decreases.In addition, N declines with the increasing values of B and b.
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