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arXiv · 2204.13383

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

Feng-Zhou Ji·Si-Yuan Bai·Jun-Hong An
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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.

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Feng-Zhou Ji, Si-Yuan Bai, Jun-Hong An. 2022-09-26. Strong coupling of quantum emitters and the exciton polariton in MoS$_2$ nanodisks. https://doi.org/10.1103/physrevb.106.115427

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