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arXiv · 1904.08888

Ensemble-induced strong light-matter coupling of a single quantum emitter

Stefan Schütz·Johannes Schachenmayer·David Hagenmüller·Gavin K. Brennen·Thomas Volz·Vahid Sandoghdar·Thomas W. Ebbesen·Claudiu Genes·Guido Pupillo
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Abstract

We discuss a technique to strongly couple a single target quantum emitter to a cavity mode, which is enabled by virtual excitations of a nearby mesoscopic ensemble of emitters. A collective coupling of the latter to both the cavity and the target emitter induces strong photon non-linearities in addition to polariton formation, in contrast to common schemes for ensemble strong coupling. We demonstrate that strong coupling at the level of a single emitter can be engineered via coherent and dissipative dipolar interactions with the ensemble, and provide realistic parameters for a possible implementation with SiV$^{-}$ defects in diamond. Our scheme can find applications, amongst others, in quantum information processing or in the field of cavity-assisted quantum chemistry.

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Stefan Schütz, Johannes Schachenmayer, David Hagenmüller, Gavin K. Brennen, Thomas Volz, Vahid Sandoghdar, Thomas W. Ebbesen, Claudiu Genes, Guido Pupillo. 2019-04-18. Ensemble-induced strong light-matter coupling of a single quantum emitter. https://doi.org/10.1103/physrevlett.124.113602

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