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Stationary quantum correlations in Tavis–Cumming model induced by continuous dephasing process

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Abstract

We investigate the dynamics of quantum correlations for the Tavis–Comming model in continuous dephasing process. It is shown that quantum discord and entanglement can reach stationary value, and quantum Zeno effect occurs in strong-coupling region. Furthermore, we explore the influence of continuous dephasing process on the trace distance between two marginal states of the two atoms and find that the trace distance also achieve a constant value during time evolution.

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Acknowledgments

This project was supported by the National Natural Science Foundation of China (Grant No. 11274274).

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Authors and Affiliations

  1. Zhejiang Institute of Modern Physics and Physics Department, Zhejiang University, Hangzhou, 310027, China

    Wei Wu, Hang-Shi Xu, Zheng-Da Hu & Jing-Bo Xu

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  1. Wei Wu
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  2. Hang-Shi Xu
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Correspondence to Jing-Bo Xu.

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Wu, W., Xu, HS., Hu, ZD. et al. Stationary quantum correlations in Tavis–Cumming model induced by continuous dephasing process. Quantum Inf Process 12, 3191–3206 (2013). https://doi.org/10.1007/s11128-013-0596-7

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  • DOI: https://doi.org/10.1007/s11128-013-0596-7

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