Tunable photon blockade in a hybrid system consisting of an optomechanical device coupled to a two-level system

TL;DR

This paper investigates how a two-level system coupled to an optomechanical device can be used to tune photon blockade and anti-bunching effects, offering a controllable method to manipulate quantum light properties.

Contribution

It introduces a novel approach to control photon blockade in an optomechanical system by coupling it with a two-level system, affecting the energy-level structure and statistical properties.

Findings

Photon blockade can be tuned via the TLS transition frequency.

Coupling strength influences the photon tunneling behavior.

TLS parameters significantly affect the cavity field statistics.

Abstract

We study photon blockade and anti-bunching in the cavity of an optomechanical system in which the mechanical resonator is coupled to a two-level system (TLS). In particular, we analyze the effects of the coupling strength (to the mechanical mode), transition frequency, and decay rate of TLS on the photon blockade. The statistical properties of the cavity field are affected by the TLS, because the TLS changes the energy-level structure of the optomechanical system via dressed states formed by the TLS and the mechanical resonator. We find that the photon blockade and tunneling can be significantly changed by the transition frequency of the TLS and the coupling strength between the TLS and the mechanical resonator. Therefore, our study provides a method to tune the photon blockade and tunneling using a controllable TLS.