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Generation of entangled coherent-squeezed states: their entanglement and nonclassical properties

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Abstract

In this paper, after a brief review on the coherent states and squeezed states, we introduce two classes of entangled coherent-squeezed states. Next, in order to generate the introduced entangled states, we present a theoretical scheme based on the resonant atom-field interaction. In the proposed model, a \(\varLambda \)-type three-level atom interacts with a two-mode quantized field in the presence of two strong classical fields. Then, we study the amount of entanglement of the generated entangled states using the concurrence and linear entropy. Moreover, we evaluate a few of their nonclassical properties such as photon statistics, second-order correlation function, and quadrature squeezing and establish their nonclassicality features.

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Authors and Affiliations

  1. Atomic and Molecular Group, Faculty of Physics, Yazd University, Yazd, Iran

    A. Karimi & M. K. Tavassoly

  2. Physics Group, Islamic Azad University of Abadeh, Fars, Iran

    A. Karimi

  3. The Laboratory of Quantum Information Processing, Yazd University, Yazd, Iran

    M. K. Tavassoly

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  1. A. Karimi
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Karimi, A., Tavassoly, M.K. Generation of entangled coherent-squeezed states: their entanglement and nonclassical properties. Quantum Inf Process 15, 1513–1527 (2016). https://doi.org/10.1007/s11128-015-1223-6

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