We study the coherence and fluorescence properties of the coherently pumped and dissipative Jaynes-Cummings-Hubbard model describing polaritons in a coupled-cavity array. At weak hopping we find strong signatures of photon blockade similar to single-cavity systems. At strong hopping the state of the photons in the array depends on its size. While the photon blockade persists in a dimer consisting of two coupled cavities, a coherent state forms on an extended lattice, which can be described in terms of a semi-classical model.
@article{arxiv.1202.1961,
title = {Non-equilibrium dynamics of coupled qubit-cavity arrays},
author = {Felix Nissen and Sebastian Schmidt and Matteo Biondi and Gianni Blatter and Hakan E. Türeci and Jonathan Keeling},
journal= {arXiv preprint arXiv:1202.1961},
year = {2012}
}