Boosting entanglement between exciton-polaritons with on-off switching of Josephson coupling

Dionisis Stefanatos; Emmanuel Paspalakis

doi:10.1103/PhysRevB.98.035303

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Boosting entanglement between exciton-polaritons with on-off switching of Josephson coupling

Dionisis Stefanatos, Emmanuel Paspalakis

DOI 10.1103/PhysRevB.98.035303 · Physical Review B

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Abstract

We show that the appropriate on-off switching of Josephson coupling between exciton-polaritons in coupled semiconductor microcavities can reveal the full capacity for generating entanglement with a recently proposed method which essentially enhances the nonlinearity of the system. The improvement achieved with this simple modulation of the coupling is substantial over the case where it is kept constant. We also show that even better results can be obtained with the additional on-off switching of the enhanced nonlinearity. The suggested procedure is expected to find also application in other research areas, where nonlinear interacting bosons are encountered.