Chiral photon blockade in the spinning Kerr resonator

TL;DR

This paper demonstrates how spinning a nonlinear optical resonator induces chiral photon blockade, enabling asymmetric quantum effects and robust non-classical correlations, advancing chiral quantum optics and potential quantum technologies.

Contribution

It introduces a method to achieve chiral photon blockade via spinning a Kerr resonator, revealing quantum effects unattainable in static systems and enhancing non-classical correlations.

Findings

Spinning induces chiral photon blockade in Kerr resonators.

Breaking time-reversal symmetry leads to asymmetric quantum effects.

Robust non-classical correlations are achievable despite backscattering.

Abstract

We propose how to achieve chiral photon blockade by spinning a nonlinear optical resonator. We show that by driving such a device at a fixed direction, completely different quantum effects can emerge for the counter-propagating optical modes, due to the spinning-induced breaking of time-reversal symmetry, which otherwise is unattainable for the same device in the static regime. Also, we find that in comparison with the static case, robust non-classical correlations against random backscattering losses can be achieved for such a quantum chiral system. Our work, extending previous works on the spontaneous breaking of optical chiral symmetry from the classical to purely quantum regimes, can stimulate more efforts towards making and utilizing various chiral quantum effects, including applications for chiral quantum networks or noise-tolerant quantum sensors.