Exciton-polariton mediated interaction between two nitrogen-vacancy color centers in diamond using two-dimensional transition metal dichalcogenides

TL;DR

This paper models the interaction between nitrogen-vacancy centers in diamond mediated by exciton-polaritons in a nearby 2D transition metal dichalcogenide layer, revealing sensitivity to distance and conditions for superradiance.

Contribution

It provides analytical expressions for exciton-polariton spectra and damping constants, and discusses exciton-mediated superradiance in this hybrid system.

Findings

Interaction parameters are highly sensitive to NV center distance from the TMD layer.

Analytical formulas for exciton-polariton spectrum and damping constants are derived.

Conditions for exciton-mediated superradiance are identified.

Abstract

In this paper, starting from a quantum master equation, we discuss the interaction between two negatively charged Nitrogen-vacancy color centers in diamond via exciton-polaritons propagating in a two-dimensional transition metal dichalcogenide layer in close proximity to a diamond crystal. We focus on the optical 1.945 eV transition and model the Nitrogen-vacancy color centers as two-level (artificial) atoms. We find that the interaction parameters and the energy levels renormalization constants are extremely sensitive to the distance of the Nitrogen-vacancy centers to the transition metal dichalcogenide layer. Analytical expressions are obtained for the spectrum of the exciton-polaritons and for the damping constants entering the Lindblad equation. The conditions for occurrence of exciton mediated superradiance are discussed.