Enhancement of Entanglement via Josephson Parametric Amplifier in a Dual Cavity-Magnon System

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Détails bibliographiques
Auteurs principaux:	Hidki, Abdelkader, Lakhfif, Abderrahim, Nassik, Mostafa, Ahmed, Rizwan, Sohail, Amjad
Format:	Preprint
Publié:	2024
Sujets:	Quantum Physics
Accès en ligne:	Acceder al recurso
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author	Hidki, Abdelkader Lakhfif, Abderrahim Nassik, Mostafa Ahmed, Rizwan Sohail, Amjad
author_facet	Hidki, Abdelkader Lakhfif, Abderrahim Nassik, Mostafa Ahmed, Rizwan Sohail, Amjad
contents	In the two microwave (MW) cross-shaped cavity magnon system, we describe a method to produce multipartite entanglement and quantum steering. To achieve squeezed states of the magnons, a Josephson parametric amplifier (JPA) creates a squeezed vacuum field that drives the two cavities. We theoretically demonstrate that the cavity-cavity entanglement can be generated at the resonance point, however, increasing the cavity and magnon decay rates generate the cavity-magnon entanglement. By changing the squeezing parameter and increasing the decay rates, we can transfer the cavity-cavity entanglement to cavity-magnon entanglement. Furthermore, the cavity-cavity entanglement (survive up to 2.8K) not only found to be much stronger but also more robust as compared to cavity-magnon entanglement (survive up to 0.4K). More importantly, the genuine photon-magnon-photon tripartite entanglement could be achieved, which is robust against the thermal fluctuations and depends strongly on squeezing parameter. Furthermore, for current dual cavity-magnon system, two-way quantum steering is found when the optomagnonical couplings are equal. The current study offers a straightforward and practical method for achieving multipartite quantum correlations.
format	Preprint
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institution	arXiv
publishDate	2024
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spellingShingle	Enhancement of Entanglement via Josephson Parametric Amplifier in a Dual Cavity-Magnon System Hidki, Abdelkader Lakhfif, Abderrahim Nassik, Mostafa Ahmed, Rizwan Sohail, Amjad Quantum Physics In the two microwave (MW) cross-shaped cavity magnon system, we describe a method to produce multipartite entanglement and quantum steering. To achieve squeezed states of the magnons, a Josephson parametric amplifier (JPA) creates a squeezed vacuum field that drives the two cavities. We theoretically demonstrate that the cavity-cavity entanglement can be generated at the resonance point, however, increasing the cavity and magnon decay rates generate the cavity-magnon entanglement. By changing the squeezing parameter and increasing the decay rates, we can transfer the cavity-cavity entanglement to cavity-magnon entanglement. Furthermore, the cavity-cavity entanglement (survive up to 2.8K) not only found to be much stronger but also more robust as compared to cavity-magnon entanglement (survive up to 0.4K). More importantly, the genuine photon-magnon-photon tripartite entanglement could be achieved, which is robust against the thermal fluctuations and depends strongly on squeezing parameter. Furthermore, for current dual cavity-magnon system, two-way quantum steering is found when the optomagnonical couplings are equal. The current study offers a straightforward and practical method for achieving multipartite quantum correlations.
title	Enhancement of Entanglement via Josephson Parametric Amplifier in a Dual Cavity-Magnon System
topic	Quantum Physics
url	https://arxiv.org/abs/2402.16042

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