We analyze the photon correlations in an optomechanical system containing two nonlinear optical modes and one mechanical mode which are coupled via a three-mode mixing. Under a weak driving condition, we determine the optimal conditions for photon antibunching in the weak Kerr-nonlinear regime and we find that the analytical calculations are consistent with the numerical results. The photon blockade effect is attributed to destructive quantum interference in the two-photon excitation pathways created as a result of the three-mode interaction.
@article{arxiv.1805.02218,
title = {Unconventional photon blockade in three-mode optomechanics},
author = {Bijita Sarma and Amarendra K. Sarma},
journal= {arXiv preprint arXiv:1805.02218},
year = {2018}
}