The Effect of a Noisy Driving Field on a Bistable Polariton System

TL;DR

This study investigates how external noise influences a bistable polariton system, revealing noise-induced transitions, the impact on hysteresis, and the existence of a noise threshold causing hysteresis collapse, supported by experiments and simulations.

Contribution

It demonstrates the effect of external noise parameters on bistable polariton dynamics, including hysteresis collapse, through combined experimental and numerical analysis.

Findings

Noise induces transitions between stable states.

External noise modifies Kramers and residence times.

Hysteresis collapses beyond a threshold noise level.

Abstract

We report on the effect of noise on the characteristics of the bistable polariton emission system. The present experiment provides a time resolved access to the polariton emission intensity. We evidence the noise-induced transitions between the two stable states of the bistable polaritons. It is shown that the external noise specifications, intensity and correlation time, can efficiently modify the polariton Kramers time and residence time. We find that there is a threshold noise strength that provokes the collapse of the hysteresis loop. The experimental results are reproduced by numerical simulations using Gross-Pitaeviskii equation driven by a stochastic excitation.