Coherence-mediated squeezing of cavity field coupled to a coherently driven single quantum dot

TL;DR

This paper theoretically demonstrates how maximal coherence in a quantum dot-cavity system can induce squeezing of the cavity field, using a polaron master equation to account for exciton-phonon interactions.

Contribution

It introduces a novel theoretical approach linking quantum coherence to cavity field squeezing via a polaron master equation.

Findings

Maximal coherence enhances cavity field squeezing.

Exciton-phonon coupling impacts the squeezing behavior.

Theoretical framework applicable to quantum dot-cavity systems.

Abstract

Coherence has been remaining a key resource for numerous applications of quantum physics ranging from quantum metrology to quantum information. Here, we report a theoretical work on how maximally created coherence results in the squeezing of cavity field coupled to a coherently driven single quantum dot. We employ a recently developed polaron master equation theory for accurately incorporating the impact of exciton-phonon coupling on squeezing.