Effect of different Dzyaloshinskii-Moriya interactions on entanglement in the Heisenberg XYZ chain

Abstract

In this paper, we study the thermal entanglement in a two-qubit Heisenberg XYZ system with different Dzyaloshinskii-Moriya (DM) couplings. We show that different DM coupling parameters have different influences on the entanglement and the critical temperature. In addition, we find that when $J_i$ ($i$-component spin coupling interaction) is the largest spin coupling coefficient, $D_i$ ($i$-component DM interaction) is the most efficient DM control parameter, which can be obtained by adjusting the direction of DM interaction.

arXiv comment5 pages, 6 figures

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Cited by in corpus (1)

• Thermal coherence of the Heisenberg model with Dzyaloshinsky-Moriya interactions in an inhomogenous external field