Entangling two microwave modes via optomechanics

TL;DR

This paper proposes a hybrid optomechanical system to generate and analyze stationary entanglement between two microwave modes, with potential applications in quantum information and quantum radar.

Contribution

It introduces a novel hybrid system combining mechanical, optical, and superconducting components to produce entanglement between microwave modes in accessible conditions.

Findings

Successful theoretical demonstration of microwave mode entanglement

Potential for practical quantum information applications

Entanglement achievable in experimentally feasible regimes

Abstract

We in theory proposed a hybrid system consisting of a mechanical resonator, an optical Fabry-P\'erot cavity, and two superconducting microwave circuits to generate stationary continuous-variable quantum entanglement between two microwave modes. We show that the hybrid system can also achieve quantum entanglement of other bipartite subsystems in experimentally accessible parameter regimes, which has the potential to be useful in quantum information processing and quantum illumination radar.