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Double-Mode Excited Entangled Coherent States and Their Fidelity

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Abstract

In this paper, we introduce the definition of a new kind of continuous-variable-type entangled coherent states, called double-mode excited entangled coherent states through acting creation operators on the double-mode entangled coherent states. We briefly present how to produce them from the two mode ECSs through an interaction between laser and atoms. We further focus on studying the fidelity of the states and discussing the influence of photon excitations on fidelity.

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Acknowledgements

This work is supported by Scientific Research Fund of Hunan Provincial Education Department No. 11C0287, Project Supported by Scientific Research Fund of Hunan Provincial Science and Technology Department No. 2009GK3144.

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Authors and Affiliations

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

    Lan Xu, Ping-ke Zhang & Gui-ping Wu

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

    Lan Xu

Authors
  1. Lan Xu
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  2. Ping-ke Zhang
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  3. Gui-ping Wu
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Correspondence to Lan Xu.

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Xu, L., Zhang, Pk. & Wu, Gp. Double-Mode Excited Entangled Coherent States and Their Fidelity. Int J Theor Phys 51, 3815–3821 (2012). https://doi.org/10.1007/s10773-012-1266-8

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  • DOI: https://doi.org/10.1007/s10773-012-1266-8

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