We analyze the properties of strongly coupled excitons and photons in systems made of semiconducting two-dimensional transition-metal dichalcogenides embedded in optical cavities. Through a detailed microscopic analysis of the coupling we unveil novel, highly tunable features of the spectrum, that result in polariton splitting and a breaking of light-matter selection rules. The dynamics of the composite polaritons is influenced by the Berry phase arising both from their constituents and from the confinement-enhanced coupling. We find that light-matter coupling emerges as a mechanism that enhances the Berry phase of polaritons well beyond that of its elementary constituents, paving the way to achieve a polariton Hall effect.
@article{arxiv.1802.02527,
title = {Polariton Hall Effect in Transition-Metal Dichalcogenides},
author = {Á. Gutiérrez-Rubio and L. Chirolli and L. Martín-Moreno and F. J. García-Vidal and F. Guinea},
journal= {arXiv preprint arXiv:1802.02527},
year = {2018}
}
Comments
5 pages, 2 figures. Supplementary Material with 4 pages, 4 figures