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Enhancement of mirror–mirror entanglement with intracavity squeezed light and squeezed-vacuum injection

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Abstract

In this manuscript, we investigate the enhancement of the transfer of quantum correlations from squeezed light to movable mirrors within an optomechanical system. This enhancement was achieved via the injection of squeezed light in the cavities and via intracavity squeezed light. We quantify the entanglement between mechanical oscillators via logarithmic negativity. We demonstrate that entanglement is influenced by various factors, including the gain of the parametric amplifier, the squeezing parameter characterizing the squeezed light, the rate of the phonon tunneling process, the coupling strength of the photon hop** process and the bath temperature of the mechanical oscillators. We have shown that entanglement can be improved by a convenient choice of coupling strength in the case of the photon hop** process, as well as for specified values of the gain of the parametric amplifier.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The study that is the subject of this article used no data].

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Authors and Affiliations

  1. LPTHE-Department of Physics, Faculty of sciences, Ibnou Zohr University, Agadir, Morocco

    Noura Chabar, M’bark Amghar, Mohamed Amazioug & Mostafa Nassik

Authors
  1. Noura Chabar
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  2. M’bark Amghar
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  3. Mohamed Amazioug
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  4. Mostafa Nassik
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Contributions

The authors contributed equally to this work.

Corresponding author

Correspondence to Mohamed Amazioug.

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Chabar, N., Amghar, M., Amazioug, M. et al. Enhancement of mirror–mirror entanglement with intracavity squeezed light and squeezed-vacuum injection. Eur. Phys. J. D 78, 33 (2024). https://doi.org/10.1140/epjd/s10053-024-00825-7

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