Phonon trapping states as a witness for generation of phonon blockade in a hybrid micromaser system

TL;DR

This paper investigates phonon trapping and blockade phenomena in a hybrid optomechanical micromaser system, revealing conditions for generating coherent phonon states and strong phonon blockade through analytical and numerical methods.

Contribution

It introduces a novel analysis of phonon trapping states and their relation to phonon blockade in a hybrid system, highlighting the effects of interaction times and reservoir squeezing.

Findings

Vacuum phonon trapping states are generated at specific interaction times.

Phonon and photon trapping can occur simultaneously under certain conditions.

Strong phonon blockade is achievable with weakly squeezed phonon reservoirs.

Abstract

In a hybrid micromaser system consisting of an optical cavity with a moving mirror connected to a low temperature thermal bath, we demonstrate, both analytically and numerically, that for certain interaction times between a random atomic flux and the optomechanical cavity, vacuum phonon trapping states are generated. Furthermore, under the approach of the master equation with independent phonon and photon thermal baths, we show that the trapping of the phonons and photons is achieved for the same interaction times. The results also indicate that by increasing the cavity-oscillator coupling one may generate a coherent phonon state aside from the trapping states. Within the same hybrid system, but now connected to the squeezed phonon reservoir, a phonon blockade effect can be engineered. Moreover, we identify an interconnection between the trapping and blockade effects, particularly if one approaches the vacuum trapping state, strong phonon blockade can be achieved when the system is connected with a weakly squeezed phonon reservoir.