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Journal of Yanbian University

Entanglement in the Heisenberg XY Spin Ring Chain with Uniform External Magnetic Fields

Wanqiang Cao

Published Jan 1, 2009• 0 citations
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Abstract

The entanglement properties in the four-qubit Heisenberg XY model in the presence of an external uniform magnetic field are investigated.The analytic representation for the measures of entanglement are obtained.The effects of the anisotropic parameter on the thermal entanglement are discussed.

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