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arXiv · 0804.4820

Thermal entanglement in the anisotropic Heisenberg XXZ model with the Dzyaloshinskii-Moriya interaction

Da-Chuang Li·Xian-Ping Wang·Zhuo-Liang Cao
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Abstract

The thermal entanglement is investigated in a two-qubit Heisenberg XXZ system with Dzyaloshinskii-Moriya (DM) interaction. It is shown that the entanglement can be efficiently controlled by the DM interaction parameter and coupling coefficient $J_{z}$. $D_{x}$(the x-component parameter of the DM interaction) has a more remarkable influence on the entanglement and the critical temperature than $D_{z}$(the z-component parameter of the DM interaction). Thus, by the change of DM interaction direction, we can get a more efficient control parameter to increase the entanglement and the critical temperature.

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Da-Chuang Li, Xian-Ping Wang, Zhuo-Liang Cao. 2008-07-19. Thermal entanglement in the anisotropic Heisenberg XXZ model with the Dzyaloshinskii-Moriya interaction. https://doi.org/10.1088/0953-8984%2F20%2F32%2F325229

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