In this work we present a tight-binding model that allows to describe with a minimal amount of parameters the band structure of exciton-polariton lattices. This model based on s and p non-orthogonal photonic orbitals faithfully reproduces experimental results reported for polariton graphene ribbons. We analyze in particular the influence of the non-orthogonality, the inter-orbitals interaction and the photonic spin-orbit coupling on the polarization and dispersion of bulk bands and edge states.
Cite
@article{arxiv.1907.13621,
title = {Multi-orbital tight binding model for cavity-polariton lattices},
author = {Franco Mangussi and Marijana Milićević and Isabelle Sagnes and Luc Le Gratiet and Abdelmounaim Harouri and Aristide Lemaître and Jacqueline Bloch and Alberto Amo and Gonzalo Usaj},
journal= {arXiv preprint arXiv:1907.13621},
year = {2020}
}