https://doi.org/10.1140/epjd/s10053-023-00600-0
Regular Article – Quantum Optics
Enhanced entanglement and output squeezing in electro-optomechanical system with an optical parametric amplifier
1
School of Mechanics and Optoelectronic Physics, Anhui University of Science and Technology, 232001, Huainan, China
2
School of Physics and Electronic Engineering, Jiaying University, 514015, Meizhou, China
Received:
22
March
2022
Accepted:
13
January
2023
Published online:
10
February
2023
We investigate the entanglement phenomena, assisted by an electro-optical hybrid system with an optical parametric amplifier. The system consists of one mechanical oscillator that is coupled to another oscillator via a Coulomb force and also to an optical cavity via an optomechanical interaction. If the coupling between the cavity field and the optical parametric amplifier and between the two mechanical oscillators is suitable, the system exhibits the phenomena of stationary entanglement. Specifically, the entanglement is strongly affected by the parameter gain and the Coulomb interaction, and larger parameter gain and stronger Coulomb coupling induce an increasing amount of entanglement. We also study the output squeezing, and the results reveal that the output entanglement is affected by the resonator frequency, the parameter gain, and the Coulomb coupling.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
