Entangling optical and microwave cavity modes by means of a nanomechanical resonator

TL;DR

This paper proposes a scheme to generate stationary entanglement between optical and microwave cavity modes via a nanomechanical resonator, enabling efficient quantum information transfer across different frequency domains.

Contribution

It introduces a novel method for entangling optical and microwave modes using a driven nanomechanical resonator, highlighting entanglement sharing among tripartite systems.

Findings

Optical-microwave entanglement can be generated with intense driving of both cavities.

Entanglement sharing allows efficient transfer between different pairs of the system.

The scheme enables stationary continuous variable entanglement in hybrid quantum systems.

Abstract

We propose a scheme able to generate stationary continuous variable entanglement between an optical and a microwave cavity mode by means of their common interaction with a micro-mechanical resonator. We show that when both cavities are intensely driven one can generate bipartite entanglement between any pair of the tripartite system, and that, due to entanglement sharing, optical-microwave entanglement is efficiently generated at the expense of microwave-mechanical and opto-mechanical entanglement.