Mamtimin-Tursun, Ahmad Abliz, Rabigul-Mamtimin, Pan Pan-Qiao, Turxun Aidilibike
We study the quantum various thermal correlation well as the effect of intrinsic decoherence on the correlations in a two-qubit Heisenberg XYZ spin chain with the Dzyaloshinski-Moriya (D-M) interaction .The quantum entanglement of the system is also discussed and compared with the classical correlation and quantum discord .We show situation where both QD and CC decreases asymptotically to zero with temperature T while entanglement decreases to zero at the point of critical temperature. situation where C, CC and QD increases with certain tunable parameter such as . We also show that tunable parameter may plays a constructive role to the C, CC and QD in thermal equilibrium .
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http://arxiv.org/abs/1207.0277
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