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Photon Excitations Excitated the Sqeezing Properties of the Excited Entangled Coherent States

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Abstract

In our previous paper, we have introduced a new kind of continuous-variable-type entangled states, called double-mode excited entangled coherent states. In this paper, we study sum squeezing properties of such excited entangled coherent states. We focus on discussing the influence of photon excitations on sum squeezing properties. It is found that the photon excitations seriously affected sqeezing properties of the excited entangled coherent states. With increasing the number of the photon excitations m, the higher-order terms move away from its initial state |ψ 0〉 and the degrees of sum squeezing are increasing. In this sense, it implies that the photon excitations excitated the sum sqeezing properties of the double-mode excited entangled coherent states.

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Acknowledgments

This work is Supported by Scientific Research Fund of Hunan Provincial Education Department of China (Grants No. 17B055).

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Authors and Affiliations

  1. Department of Mathematics and Science, Hunan First Normal University, Changsha, 410205, China

    Lan Xu & Lin Yan

  2. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Hunan Normal University, Changsha, 410081, China

    Lan Xu

  3. Department of Physics, Hunan Normal University, Changsha, 410081, China

    Lan Xu

  4. College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang, 421002, China

    Shi-Qing Tang

Authors
  1. Lan Xu
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  2. Shi-Qing Tang
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  3. Lin Yan
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Correspondence to Lan Xu.

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Xu, L., Tang, SQ. & Yan, L. Photon Excitations Excitated the Sqeezing Properties of the Excited Entangled Coherent States. Int J Theor Phys 57, 414–427 (2018). https://doi.org/10.1007/s10773-017-3573-6

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  • DOI: https://doi.org/10.1007/s10773-017-3573-6

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