The effect of anisotropy and external magnetic filed on the thermal entanglement in a two-spin-qutrit system

Details The effect of anisotropy and external magnetic filed on the thermal entanglement in a two-spin-qutrit system The effect of anisotropy and external magnetic filed on the thermal entanglement in a two-spin-qutrit system

2006-08-22

arxiv.org/abs/quant-ph/0608169v1

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

We study the thermal entanglement in a two-spin-qutrit system with anisotropy
in the exchange coupling between two spins. We use the realignment criterion to
distinguish the entangled states, and the negativity for measuring the
entanglement in this system. We see that the anisotropy can provide an
additional parameter for enhancing the entanglement.

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