Enhanced the Bi-(Tri-)partite entanglement between three magnons in a cavity magnomechanics system

We propose a scheme to generate steady-state bipartite and tripartite entanglement in the cavity magnomechanical system, which consists of a microwave (MW) cavity field, three magnons, and a phonon mode. The three magnons are coupled to the MW cavity via the magnetic dipole interaction, and one of t...

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Bibliographic Details
Published in:Journal of physics. B, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2023-06, Vol.56 (11), p.115401
Main Authors: Hidki, Abdelkader, Ren, Ya-long, Lakhfif, Abderrahim, El Qars, Jamal, Nassik, Mostafa
Format: Article
Language:English
Subjects:
bipartite entanglement
decoherence
magnomechanical system
magnon
tripartite entanglement
YIG sphere
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Summary:We propose a scheme to generate steady-state bipartite and tripartite entanglement in the cavity magnomechanical system, which consists of a microwave (MW) cavity field, three magnons, and a phonon mode. The three magnons are coupled to the MW cavity via the magnetic dipole interaction, and one of them is also coupled to the phonon mode through the magnetostrictive force. By utilizing the nonlinearity of the magnetostrictive force and the cavity-magnon interaction, the three magnons become mutually entangled, and the steady-state of the system displays a genuine tripartite entanglement. We found that there are optimum parameters, including the detunings and the cavity-magnon coupling, which lead to maximum entanglement. Moreover, the entanglement is robust against thermal effects.
ISSN:0953-4075
1361-6455
DOI:10.1088/1361-6455/acce11