The photon blockade is a hallmark of quantum light transport through a single two-level system that can accomodate only one photon. Here, we theoretically show that two-photon transmission can be suppressed even for a seemingly classical system with large number of quantum dots in a cavity when the biexciton nonlinearity is taken into account. We reveal the nonmonotonous dependence of the second-order correlation function of the transmitted photons on the biexciton binding energy. The blockade is realized by proper tuning the biexciton resonance that controls the collective superradiant modes.
@article{arxiv.1511.03627,
title = {Biexciton-mediated superradiant photon blockade},
author = {Alexander V. Poshakinskiy and Alexander N. Poddubny},
journal= {arXiv preprint arXiv:1511.03627},
year = {2016}
}