Strong coupling of quantum emitters and the exciton polariton in MoS$_2$ nanodisks

TL;DR

This paper demonstrates that strong coupling between quantum emitters and exciton polaritons in MoS₂ nanodisks can generate and stabilize quantum correlations despite damping, by forming bound states through hybridization.

Contribution

It introduces a mechanism to overcome exciton polariton damping effects, enabling persistent quantum correlations in quantum emitter systems.

Findings

Persistent quantum correlations can be achieved despite EP damping.

Hybridization leads to bound states that stabilize quantum interactions.

Quantum correlations are maintained even at steady state.

Abstract

As a quasiparticle formed by light and excitons in semiconductors, the exciton-polariton (EP) as a quantum bus is promising for the development of quantum interconnect devices at room temperature. However, the significant damping of EPs in the material generally causes a loss of quantum information. We propose a mechanism to overcome the destructive effect of a damping EP on its mediated correlation dynamics of quantum emitters (QEs). Via an investigation of the near-field coupling between two QEs and the EP in a monolayer MoS$_{2}$ nanodisk, we find that, with the complete dissipation of the QEs efficiently avoided, a persistent quantum correlation between the QEs can be generated and stabilized even to their steady state. This is due to the fact that, with upon decreasing the QE-MoS$_2$ distance, the QEs become so hybridized with the EP that one or two bound states are formed between them. Our result supplies a useful way to avoid the destructive impact of EP damping, and it refreshes our understanding of the light-matter interaction in absorbing medium.