Entangling nanomechanical oscillators in a ring cavity by feeding squeezed light

TL;DR

This paper proposes a method to entangle two nanomechanical oscillators using squeezed vacuum and laser light in a ring cavity, demonstrating significant entanglement across various conditions.

Contribution

It introduces a scheme for entangling separated nanomechanical oscillators via squeezed light injection in a ring cavity, operating in the resolved sideband regime.

Findings

Maximum entanglement occurs at a squeezing parameter of about 1.

Significant entanglement is achievable over wide power and temperature ranges.

The scheme is effective in the resolved sideband regime.

Abstract

A scheme is presented for entangling two separated nanomechanical oscillators by injecting broad band squeezed vacuum light and laser light into the ring cavity. We work in the resolved sideband regime. We find that in order to obtain the maximum entanglement of the two oscillators, the squeezing parameter of the input light should be about 1. We report significant entanglement over a very wide range of power levels of the pump and temperatures of the environment.