N-photon correlations from non-identical strongly coupled quantum emitters
Department of Physics, University of Kurdistan, P.O. Box 66177 15175, Sanandaj, Iran
2 Basic Sciences Group, Golpayegan College of Engineering, Isfahan University of Technology, 87717-67498, Golpayegan, Iran
Accepted: 29 September 2022
Published online: 13 October 2022
We investigate N-th order (N) photon-photon correlations for the light emitted from two strongly interacting non-identical emitters. Collective dressed states, where non-identical emitters contain the component of anti-symmetric atomic state coupled with a light mode, can describe various photon correlations containing various N-photon real and virtual joint emissions. We show that the correlations for two non-identical interacting atoms have the advantage of being strong and long-lived due to the participation of the anti-symmetric atomic state in the dressed levels. This is an advantage over single or two identical interacting atoms. Our study shows this property in the case of real processes, where the photons are associated with specific resonances, and virtual processes, where pairs of photons are emitted jointly.
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