Deterministic preparation of non-classical states of light in cavity-optomechanics

TL;DR

This paper proposes a driving protocol in cavity-optomechanics that enables the deterministic and near-pure preparation of non-classical light states, such as photon Fock states and superpositions, by leveraging anharmonic interactions.

Contribution

It introduces a novel driving protocol that exploits anharmonic interactions for deterministic non-classical state preparation in cavity-optomechanics.

Findings

Protocol enables near-pure state preparation

Deterministic creation of photon Fock states

Facilitates superpositions of non-classical states

Abstract

Cavity-optomechanics is an ideal platform for the generation non-Gaussian quantum states due to the anharmonic interaction between the light field and the mechanical oscillator; but exactly this interaction also impedes the preparation in pure states of the light field. In this paper we derive a driving protocol that helps to exploit the anharmonic interaction for state preparation, and that ensures that the state of the light field remains close-to-pure. This shall enable the deterministic preparation of photon Fock states or coherent superpositions thereof.