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arXiv · 1503.07351

Permanent Rabi oscillations in coupled exciton-photon systems with PT-symmetry

I. Y. Chestnov·S. S. Demirchyan·S. M. Arakelian·A. P. Alodjants·Y. G. Rubo·A. V. Kavokin
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Abstract

We propose a physical mechanism which enables permanent Rabi oscillations in driven-dissipative condensates of exciton-polaritons in semiconductor microcavities subjected to external magnetic fields. The method is based on incoherent excitonic reservoir engineering. We demonstrate that permanent non-decaying oscillations may appear due to the parity-time (PT) symmetry of the coupled exciton-photon system realised in a specific regime of pumping to the exciton state and depletion of the reservoir. For effective non-zero exciton-photon detuning, permanent Rabi oscillations occur with unequal amplitudes of exciton and photon components. Our predictions pave way to realisation of integrated circuits based on exciton-polariton condensates.

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I. Y. Chestnov, S. S. Demirchyan, S. M. Arakelian, A. P. Alodjants, Y. G. Rubo, A. V. Kavokin. 2015-03-25. Permanent Rabi oscillations in coupled exciton-photon systems with PT-symmetry. https://doi.org/10.1038/srep19551

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