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Nonclassical Correlations in a Three-Mode Continuous-Variable System

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Journal of Russian Laser Research Aims and scope

Abstract

We investigate a standard measure of quantum discord for tripartite coherent states of the Greenberger–Horne–Zeilinger (GHZ) type. Furthermore, we check the monotonicity of a superquantum discord according to weak quantum measurements. We accomplish our study by manipulating the amount of quantum information lost during the perturbation of the quantum system and controlling the measurement strength. In addition, we calculate the entanglement of the system under study. Finally we compare the behavior of the three correlations.

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Authors and Affiliations

  1. Laboratoire de Physique Théorique, Département de Physique Faculté des Sciences, Université Mohammed V - Agdal, Av. Ibn Battouta, B.P. 1014, Agdal, Rabat, Morocco

    F. Siyouri, M. Ziane, M. El Baz & Y. Hassouni

Authors
  1. F. Siyouri
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  2. M. Ziane
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  3. M. El Baz
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  4. Y. Hassouni
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Correspondence to F. Siyouri.

Additional information

Manuscript submitted by the authors in English on December 22, 2016.

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Siyouri, F., Ziane, M., El Baz, M. et al. Nonclassical Correlations in a Three-Mode Continuous-Variable System. J Russ Laser Res 38, 27–36 (2017). https://doi.org/10.1007/s10946-017-9617-9

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  • DOI: https://doi.org/10.1007/s10946-017-9617-9

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