New effects of polarization multistability and polarization hysteresis in a coherently driven polariton condensate in a semiconductor microcavity are predicted and theoretically analyzed. The multistability arises due to polarization-dependent polariton-polariton interactions and can be revealed in polarization resolved photoluminescence experiments. The pumping power required to observe this effect is of 4 orders of magnitude lower than the characteristic pumping power in conventional bistable optical systems.
@article{arxiv.cond-mat/0612686,
title = {Polarization multistability of cavity polaritons},
author = {N. A. Gippius and I. A. Shelykh and D. D. Solnyshkov and S. S. Gavrilov and Yuri G. Rubo and A. V. Kavokin and S. G. Tikhodeev and G. Malpuech},
journal= {arXiv preprint arXiv:cond-mat/0612686},
year = {2009}
}