Superradiance-driven Phonon Laser

TL;DR

This paper introduces a novel method to boost phonon laser output by leveraging optical superradiance from an ultracold atomic gas within an optomechanical cavity, enabling enhanced coherent phonon generation.

Contribution

It presents a new scheme combining superradiance with optomechanics to improve phonon laser performance, which has not been explored before.

Findings

Superradiance enhances phonon laser output.

Coherent atomic gases can assist in phonon laser operation.

New cavity-based approach for phonon amplification.

Abstract

We propose to enhance the generation of a phonon laser by exploiting optical superradiance. In our scheme, the optomechanical cavity contains a movable membrane, which supports a mechanical mode, and the superradiance cavity can generate the coherent collective light emissions by applying a transverse pump to an ultracold intracavity atomic gas. The superradiant emission turns out to be capable of enhancing the phonon laser performance. This indicates a new way to operate a phonon laser with the assistance of coherent atomic gases trapped in a cavity or lattice potentials.