Quantum Correlations in Ising-XYZ Diamond Chain Structure under an External Magnetic Field
Faizi E., Eftekhari H.**
Department of Physics, Azarbaijan Shahid Madani University, Tabriz 53714-161, Iran
Abstract ：We consider an entangled Ising-XYZ diamond chain structure. Quantum correlations for this model are investigated by using quantum discord and trace distance discord. Quantum correlations are obtained for different values of the anisotropy parameter, magnetic field and temperature. By comparison between quantum correlations, we show that the trace distance discord is always larger than quantum discord. Finally, some novel effects such as increasing the quantum correlations with temperature and constructive role of anisotropy parameter, which may play to the quantum correlations, are observed.
收稿日期: 2015-05-05
出版日期: 2015-10-30
:
03.65.Ta
(Foundations of quantum mechanics; measurement theory)
03.67.-a
(Quantum information)
75.10.Jm
(Quantized spin models, including quantum spin frustration)
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2015, Vol. 32 
