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Dynamic statistical properties of squeezed coherent state superpositions

Author

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  • Sales, J.S.
  • de Almeida, N.G.

Abstract

We carried out a study of statistical properties of a squeezed coherent state superposition (SCSS) evolving under a thermal reservoir at zero and finite temperature. Our results reveal some peculiarities not noticed by previous studies, which were mainly focused on ideal (lossless) properties of SCSS. Our main results indicate the existence of realistic parameters for which SCSS, at zero absolute, remains sub-Poissonian or squeezed asymptotically, while, at finite temperature, we found that SCSS only loses its squeezing or sub-Poissonian character at large times as compared with the time needed to the SCSS become a complete mixture.

Suggested Citation

  • Sales, J.S. & de Almeida, N.G., 2013. "Dynamic statistical properties of squeezed coherent state superpositions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 392(16), pages 3308-3315.
    • Handle: RePEc:eee:phsmap:v:392:y:2013:i:16:p:3308-3315
    DOI: 10.1016/j.physa.2013.02.017
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    References listed on IDEAS

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    1. Xie, Rui-Hua & Rao, Qin, 2002. "Generation of higher-order atomic dipole squeezing in a high-Q micromaser cavity. (VI). Atomic damping by a squeezed vacuum," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 315(3), pages 411-426.
    2. Arnoldus, Henk F. & George, Thomas F., 1995. "Squeezing in resonance fluorescence and Schrödinger's uncertainty relation," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 222(1), pages 330-346.
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