Microwave-optics Entanglement via Cavity Optomagnomechanics
- URL: http://arxiv.org/abs/2208.10703v2
- Date: Sat, 30 Sep 2023 02:28:49 GMT
- Title: Microwave-optics Entanglement via Cavity Optomagnomechanics
- Authors: Zhi-Yuan Fan, Liu Qiu, Simon Gr\"oblacher, Jie Li
- Abstract summary: A new mechanism for preparing stationary entanglement between microwave and optical cavity fields is proposed.
The microwave-optics entanglement is robust against thermal noise.
It will find broad potential applications in quantum networks and quantum information processing with hybrid quantum systems.
- Score: 4.24565587746027
- License: http://creativecommons.org/publicdomain/zero/1.0/
- Abstract: Microwave-optics entanglement is a vital component for building hybrid
quantum networks. Here, a new mechanism for preparing stationary entanglement
between microwave and optical cavity fields in a cavity optomagnomechanical
system is proposed. It consists of a magnon mode in a ferrimagnetic crystal
that couples directly to a microwave cavity mode via the magnetic dipole
interaction, and indirectly to an optical cavity through the deformation
displacement of the crystal. The mechanical displacement is induced by the
magnetostrictive force and coupled to the optical cavity via radiation
pressure. Both the opto- and magnomechanical couplings are dispersive.
Magnon-phonon entanglement is created via magnomechanical parametric
down-conversion, which is further distributed to optical and microwave photons
via simultaneous optomechanical beamsplitter interaction and electromagnonic
state-swap interaction, yielding stationary microwave-optics entanglement. The
microwave-optics entanglement is robust against thermal noise, which will find
broad potential applications in quantum networks and quantum information
processing with hybrid quantum systems.
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