We report the existence, and study mobility and interactions of gap polariton solitons in a microcavity with a periodic potential, where the light field is strongly coupled to excitons. Gap solitons are formed due to the interplay between the repulsive exciton-exciton interaction and cavity dispersion. The analysis is carried out in an analytical form, using the coupled-mode (CM) approximation, and also by means of numerical methods.
@article{arxiv.0907.4440,
title = {Gap polariton solitons},
author = {A. V. Gorbach and B. A. Malomed and D. V. Skryabin},
journal= {arXiv preprint arXiv:0907.4440},
year = {2009}
}