A single-photon router based on a modulated cavity optomechanical system

TL;DR

This paper demonstrates a single-photon routing mechanism using a modulated cavity optomechanical system, where a weak coherent field enables effective routing despite quantum and thermal noise.

Contribution

It introduces a novel single-photon routing scheme utilizing a modulated cavity optomechanical system with noise immunity through weak coherent field modulation.

Findings

Routing is ineffective without the weak coherent field.

Introducing the weak coherent field enables photon routing.

System becomes immune to quantum and thermal noises with modulation.

Abstract

We investigate the routing of a single-photon in a modulated cavity optomechanical system, in which the cavity is driven by a strong coupling field, and the mechanical resonator (MR) is modulated with a weak coherent field. We show that, when there is no a weak coherent field modulating the MR, the system cannot act as a single-photon router, since the signal will be completely covered by the quantum and thermal noises. By introducing the weak coherent field, we can achieve the routing of the single-photon by adjusting the frequency of the weak coherent field, and the system can be immune to the quantum and thermal noises.