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Dipole squeezing in the multi-photon Jaynes-Cummings model with and without the rotating-wave approximation

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Zeitschrift für Physik B Condensed Matter

Abstract

By virtue of the numerical method of Graham and Höhnerbach [12], we have investigated the quantum fluctuations of the atomic dipole variables in the multiphoton Jaynes-Cummings model with and without the rotating wave approximation (RWA) when it is restricted to the following initial condition: the atom in its superposition state and the field in the vacuum state. We found that even under the conditions in which the RWA is considered to be valid there are significant effects of virtual-photon field on dipole squeezing predicted in the RWA, and dipole squeezing turns to disappear for sufficiently strong coupling.

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Authors and Affiliations

  1. Department of Physics, Nanjing University, 210008, Nanjing, People's Republic of China

    Rui-hua Xie & Gong-ou Xu

  2. Department of Physics, Wuhuan University, 430072, Wuhuan, People's Republic of China

    Dun-huan Liu

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  1. Rui-hua Xie
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  2. Dun-huan Liu
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  3. Gong-ou Xu
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Xie, Rh., Liu, Dh. & Xu, Go. Dipole squeezing in the multi-photon Jaynes-Cummings model with and without the rotating-wave approximation. Z. Phys. B - Condensed Matter 99, 253–260 (1995). https://doi.org/10.1007/BF02769940

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  • DOI: https://doi.org/10.1007/BF02769940

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