Quantum Correlations in a Family of Two-Qubit Separable States |
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| Authors: | YE Biao-Liang LIU Yi-Min XU Chun-Jie LIU Xian-Song ZHANG Zhan-Jun |
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| Institution: | 1.School of Physics & Material Science, Anhui University, Hefei 230039, China;2.Department of Physics, Shaoguan University, Shaoguan 512005, China |
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| Abstract: | Quantum correlations in a family of two-qubit separable classical-quantum correlated states are intensively studied with four different approaches, namely, quantum discord Phys. Rev. Lett. 88 (2002) 017901], measurement- induced disturbance (MID) Phys. Rev. A 77 (2008) 022301], ameliorated MID J. Phys. A: Math. Theor. 44 (2011) 352002] and quantum dissonance Phys. Rev. Lett. 104 (2010) 080501]. Quantum correlations captured with different approaches are compared and discussed so that their three distinct features are exposed. |
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| Keywords: | quantum correlation quantum discord quantum dissonance separable state |
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