Dissipative Dynamics of Quantum and Classical Correlations for Two-Qubit Under Two-Side and One-Side Decoherence
Year: 2012
Author: Xiu-Feng Li, Mao-Fa Fang, Cheng-Zhi Wang, Li-Zhen Hou
Journal of Atomic and Molecular Sciences, Vol. 3 (2012), Iss. 2 : pp. 177–186
Abstract
The dissipative dynamics of classical correlation(CC), quantum discord(QD) and entanglement (QE) of two qubits in two-side and one-side decoherence models are investigated under Markovian environments. We find the sudden change QD as well as CC and sudden death of entanglement (ESD). The results show that QD and QE decay faster with the increasing of squeezing parameter $r;$ the dipole-dipole interaction $\Omega$ under two-side decoherence leads to the oscillation of quantum discord and concurrence for initial non-eigenstates; while in all cases when entanglement suddenly disappears, quantum discord keeps nonzero under same conditions.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/jams.050411.052411a
Journal of Atomic and Molecular Sciences, Vol. 3 (2012), Iss. 2 : pp. 177–186
Published online: 2012-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 10
Keywords: quantum discord entanglement classical correlation dipole-dipole interaction squeezing parameter.