Self-rotation and synchronization in exciton-polariton condensates

TL;DR

This paper reports the discovery of spontaneous self-rotation and synchronization phenomena in exciton-polariton condensates within semiconductor microcavities, revealing new dynamic behaviors in driven-dissipative quantum fluids.

Contribution

It introduces the observation of spontaneous self-rotation and synchronization in exciton-polariton condensates, a novel dynamic behavior not previously documented.

Findings

Self-rotation occurs spontaneously in the condensate.

Synchronization can be achieved between two self-rotating condensates.

The phenomena depend on the spatial arrangement of the condensates.

Abstract

Self-rotation occurs in an exciton-polariton condensate in a two-dimensional semiconductor microcavity pumped by a nonresonant Gaussian laser beam. A wave packet of the condensate spontaneously rotates around the center of the pumped region at a constant frequency breaking the rotation symmetry of the system. When two self-rotating condensates are created with an appropriate distance, synchronization occurs between the dynamics of the self-rotating condensates.