Chinese Physics B

Thermal quantum and total correlations in spin-1 bipartite system

Liang Qiu, Bin Ye

Published May 1, 2014• 5 citations

Abstract

Thermal quantum and total correlations of a two spin-1 Ising model in the presence of an external homogeneous magnetic field and the Dzyaloshinski—Moriya (DM) interaction are investigated. The result indicates that the DM interaction plays a leading role in the quantum correlation measured by measurement-induced disturbance except for the region with small DM interaction and low temperature, while the DM interaction and the external magnetic field play competing roles in the negativity. The thermal total correlations measured by an alternative new measure defined in terms of the Wigner—Yanase skew information and the quantum mutual information display differences in the same region.

DOI: 10.1088/1674-1056/23/5/050304

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