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Optimized decoherence suppression of two qubits in independent non-Markovian environments using weak measurement and quantum measurement reversal

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Abstract

In this paper, the dynamics of concurrence and quantum discord (QD) for the Werner state in independent non-Markovian environment is investigated. Our result manifests that QD reveal more properties about quantum correlations than concurrence for the given system. Additionally, an optimal scheme is proposed to suppress decoherence by performing prior weak measurement and post-measurement reversal. It is worth noticing that the effect of our scheme is better for the larger measurement strengths, and the stronger decoherence suppression induces smaller selection probability.

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Acknowledgments

This work was supported by the National Science Foundation of China under Grant Nos. 11074002 and 61275119, the Doctoral Foundation of the Ministry of Education of China under Grant No. 20103401110003, the Natural Science Research Project of Education Department of Anhui Province of China under Grant No. KJ2013A205, and also by the Personal Development Foundation of Anhui Province (2008Z018).

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Authors and Affiliations

  1. School of Physics and Material Science, Anhui University, Hefei, 230039, People’s Republic of China

    Shuai Xu, Juan He, Xue-ke Song, Jia-dong Shi & Liu Ye

  2. School of Physics and Electronics Science, Fuyang Normal College, Fuyang, 236037, People’s Republic of China

    Juan He

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  1. Shuai Xu
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  2. Juan He
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  3. Xue-ke Song
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  4. Jia-dong Shi
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  5. Liu Ye
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Correspondence to Liu Ye.

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Xu, S., He, J., Song, Xk. et al. Optimized decoherence suppression of two qubits in independent non-Markovian environments using weak measurement and quantum measurement reversal. Quantum Inf Process 14, 755–764 (2015). https://doi.org/10.1007/s11128-014-0871-2

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  • DOI: https://doi.org/10.1007/s11128-014-0871-2

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