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Quantum Correlations in a Family of Bipartite Qubit-Qutrit Separable States |
| YE Biao-Liang1, LIU Yi-Min2, LIU Xian-Song1, ZHANG Zhan-Jun1** |
1School of Physics & Material Science, Anhui University, Hefei 230039
2Department of Physics, Shaoguan University, Shaoguan 512005
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| Cite this article: |
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YE Biao-Liang, LIU Yi-Min, LIU Xian-Song et al 2013 Chin. Phys. Lett. 30 020302 |
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Abstract Quantum correlations in a family of bipartite separable qubit-qutrit quantum-classical correlated states are investigated by using two popular measures, i.e., the original quantum discord (OQD) method by Ollivier and Zurek [Phys. Rev. Lett. 88 (2001) 017901] and the measurement-induced disturbance (MID) method by Luo [Phys. Rev. A 77 (2008) 022301]. It is found that both of them are functions of a parameter partially characterizing the concerned states, however, quantum correlations evaluated via the convenient MID method are somewhat overestimated.
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Received: 05 November 2012
Published: 02 March 2013
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| PACS: |
03.65.Ta
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(Foundations of quantum mechanics; measurement theory)
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03.67.-a
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(Quantum information)
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