具有磁振子压缩的腔磁机械系统中量子关联的反馈控制

Feedback Control of Quantum Correlations in a Cavity Magnomechanical System with Magnon Squeezing.

作者信息

Amazioug Mohamed, Singh Shailendra, Teklu Berihu, Asjad Muhammad

机构信息

LPTHE-Department of Physics, Faculty of Sciences, Ibnou Zohr University, Agadir 80000, Morocco.

Process Systems Engineering Centre (PROSPECT), Research Institute of Sustainable Environment (RISE), Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia.

出版信息

Entropy (Basel). 2023 Oct 18;25(10):1462. doi: 10.3390/e25101462.

DOI:10.3390/e25101462

PMID:37895583

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10606175/

Abstract

We suggest a method to improve quantum correlations in cavity magnomechanics, through the use of a coherent feedback loop and magnon squeezing. The entanglement of three bipartition subsystems: photon-phonon, photon-magnon, and phonon-magnon, is significantly improved by the coherent feedback-control method that has been proposed. In addition, we investigate Einstein-Podolsky-Rosen steering under thermal effects in each of the subsystems. We also evaluate the scheme's performance and sensitivity to magnon squeezing. Furthermore, we study the comparison between entanglement and Gaussian quantum discord in both steady and dynamical states.

摘要

我们提出了一种通过使用相干反馈回路和磁振子压缩来改善腔磁机械学中量子关联的方法。所提出的相干反馈控制方法显著提高了三个二分量子系统（光子 - 声子、光子 - 磁振子和声子 - 磁振子）的纠缠。此外，我们研究了每个子系统在热效应下的爱因斯坦 - 波多尔斯基 - 罗森引导。我们还评估了该方案对磁振子压缩的性能和灵敏度。此外，我们研究了稳态和动态状态下纠缠与高斯量子失协之间的比较。