Enhanced nonlinear interactions in quantum optomechanics via mechanical amplification.
The quantum nonlinear regime of optomechanics is reached when nonlinear effects of the radiation pressure interaction are observed at the single-photon level. This requires couplings larger than the mechanical frequency and cavity-damping rate, and is difficult to achieve experimentally. Here we show how to exponentially enhance the single-photon optomechanical coupling strength using only additional linear resources. Our method is based on using a large-amplitude, strongly detuned mechanical parametric drive to amplify mechanical zero-point fluctuations and hence enhance the radiation pressure interaction. It has the further benefit of allowing time-dependent control, enabling pulsed schemes. For a two-cavity optomechanical set-up, we show that our scheme generates photon blockade for experimentally accessible parameters, and even makes the production of photonic states with negative Wigner functions possible. We discuss how our method is an example of a more general strategy for enhancing boson-mediated two-particle interactions and nonlinearities.
Department of Physics, McGill University, 3600 rue University, Montreal, Quebec, Canada H3A 2T8.
Marc-Antoine
MA
Lemonde
Department of Physics, McGill University, 3600 rue University, Montreal, Quebec, Canada H3A 2T8.|Départment de Physique, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, Québec, Canada J1K 2R1.
Nicolas
N
Didier
Department of Physics, McGill University, 3600 rue University, Montreal, Quebec, Canada H3A 2T8.
Aashish A
AA
Clerk