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Quantum Correlation of Two Entangled Atoms Interacting with the Binomial Optical Field

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Abstract

Quantum correlations of two atoms in a system of two entangled atoms interacting with the binomial optical field are investigated. In eight different initial states of the two atoms, the influence of the strength of the dipole-dipole interaction, probabilities of a the Bernoulli trial and particle number of the binomial optical field on the temporal evolution of the geometrical quantum discord between two atoms are discussed. The result shows that two atoms always exist the correlation for different parameters. In addition, when and only when the two atoms are initially in the maximally entangled state, the temporal evolution of geometrical quantum discord is not affected by the parameters, and always keep in the degree of geometrical quantum discord that is a fixed value.

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Acknowledgments

This work was supported by the National Basic Research Program of China (Grant No. 2012CB922103), the National Natural Science Foundation of China (Grant Nos. 11274104, and 11404108), and the Natural Science Foundation of Hubei Province, China (Grant No. 2011CDA021).

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Authors and Affiliations

  1. College of Physics and Electronic Science, Hubei Normal University, Huangshi, 435002, China

    Tang-Kun Liu, Yu Tao, Chuan-Jia Shan & Ji-bing Liu

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  1. Tang-Kun Liu
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  2. Yu Tao
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  3. Chuan-Jia Shan
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  4. Ji-bing Liu
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Correspondence to Tang-Kun Liu.

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Liu, TK., Tao, Y., Shan, CJ. et al. Quantum Correlation of Two Entangled Atoms Interacting with the Binomial Optical Field. Int J Theor Phys 55, 4219–4230 (2016). https://doi.org/10.1007/s10773-016-3047-2

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  • DOI: https://doi.org/10.1007/s10773-016-3047-2

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