Cooperative emission from two coupled solid-state quantum emitters
Phys. Rev. A 114, 013716 – Published 17 July, 2026
DOI: https://doi.org/10.1103/k7f5-vqzh
Abstract
We discuss the behavior of cooperative effects in the emitted light from a system of two nitrogen-vacancy centers confined in a nanopillar having dimensions close to the wavelength of the excitation pump. We experimentally observe a for the coupled emitter system and a drastic decrease in the singlet and triplet transition rates increase by a factor of approximately 6, indicating an interaction between the two emitters, which indicates superradiant behavior. We theoretically study the dissipative dynamics of the interaction of the emitter system with the excitation light at a finite temperature for three cases (a single emitter and two emitters with and without dipole-dipole coupling) by solving the Lindblad master equation and providing an analytical expression for the second-order correlation function. Through this, we support our experimental results and discuss superradiance from our system.
