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.
@article{arxiv.1503.07351,
title = {Permanent Rabi oscillations in coupled exciton-photon systems with PT-symmetry},
author = {I. Y. Chestnov and S. S. Demirchyan and S. M. Arakelian and A. P. Alodjants and Y. G. Rubo and A. V. Kavokin},
journal= {arXiv preprint arXiv:1503.07351},
year = {2018}
}