期刊
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
卷 39, 期 10, 页码 2665-2669出版社
Optica Publishing Group
DOI: 10.1364/JOSAB.465554
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We investigate the generation of entanglement in a cavity magnomechanical system, and find that introducing magnon squeezing enhances the entanglement between magnon-photon, magnon-phonon, and photon-phonon. There exists an optimal squeezing parameter that yields maximum entanglement. This study provides a new perspective on exploring quantum entanglement properties in cavity magnomechanical systems and has potential applications in quantum state engineering.
We investigate the generation of entanglement in a cavity magnomechanical system, which consists of magnons and cavity microwave photons and phonons; the magnon-photon and magnon-phonon couplings are achieved by the magnetic dipole interaction and the magnetostrictive interaction, respectively. By introducing magnon squeezing induced by magnon self-Kerr nonlinearity, the magnon-photon, magnon-phonon, and photon-phonon entanglements are enhanced compared with the case without inserting magnon squeezing. We find that an optimal parameter of the squeezing exists, which yields the maximum entanglement. This study provides a new idea for exploring the properties of quantum entanglement in cavity magnomechanical systems, and may have some potential applications in quantum state engineering. (c) 2022 Optica Publishing Group
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