Increasing Quantum Correlations Based on Measurement-Induced Disturbance via a Swapping Procedure with Two-Qubit Mixed States |
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| Authors: | Chuanmei Xie Feiyang Wu Zhanjun Zhang Jiawei Liang Xiaofeng Yin |
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| Affiliation: | 1.School of Physics and Optoelectronics Engineering, Anhui University, Hefei 230039, China; (C.X.); (X.Y.);2.College of Science, China University of Petroleum (Beijing), Beijing 102249, China;3.School of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou 310018, China;4.School of Physical Science, University of Science and Technology of China, Hefei 230026, China; |
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| Abstract: | In this paper, quantum correlation (QC) swapping for certain separable two-qubit mixed states is treated. A QC quantifier, measurement-induced disturbance (MID) (Luo in Phys Rev A 77:022301, 2008), is employed to characterize and quantify QCs in the relevant states. Properties of all QCs in the swapping process are revealed. Particularly, it is found that MID can be increased through QC swapping for certain separable two-qubit mixed states. |
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| Keywords: | quantum correlation swapping measurement-induced disturbance (MID) separable two-qubit mixed state |
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