Thermal Entanglement of an XY Two-Qutrit Spin Chain with Dzialoshinski–Moriya Interaction
Xiao-San Ma, Wang An-Min · Communications in Theoretical Physics · 2009
The effect of Dzialoshinski–Moriya (DM) interaction on thermal entanglement of an XY two-qutrit spin chain is investigated. We find that DM interaction and the anisotropy parameter can enhance quantum thermal entanglement to a maximal value individually. However, when both of them take large values, the entanglement is not enhanced, but is destroyed. Our analysis will shed some light on the understanding of the effect of the DM interaction on thermal entanglement of an XY two-qutrit spin chain.