Geometric measurement of quantum correlation for a kind of X-state

[1] Horodecki R, Horodecki P, et al. Quantum entanglement [J]. Rev. Mod. Phy., 2009, 81: 865.

[2] Ollivier H, Zurek W H. Quantum discord: a measure of the quantumness of correlations [J]. Phys. Rev. Lett., 2002, 88: 017901.

[3] Knill E, Laflamme R. Power of one bit of quantum information [J]. Phys. Rev. Lett., 1998, 81: 5672.

[4] Dakic B, Vedral V, Brukner C. Necessary and sufficient condition for non-zero quantum discord [J]. Phys. Rev. Lett., 2010, 105: 190502.

[5] Ali M, Rau A R P, Alber G. Quantum discord for two-qubit X-states [J]. Phys. Rev. A, 2010, 81: 042105.

[6] Li J, Paraoanu G S. Decay of entanglement in coupled, driven systems with bipartite decoherence [J]. Eur. Phys. J D, 2010, 56: 255.

[7] Yu T, Eberly J H. Quantum open system theory: bipartite aspects [J]. Phys. Rev. Lett., 2006, 97: 140403.

[8] Wang X G, Miranowicz A, et al. Sudden vanishing of spin squeezing under decoherence [J]. Phys. Rev. A, 2010, 81: 022106.

[9] Lu X M, Xi Z J, et al. Geometric measure of quantum discord under decoherence [OL]. 2010, e-print, quantum-ph/10045281v3.