Vortex Dynamics of Rotating Bose-Einstein Condensate of Microcavity Polaritons

TL;DR

This paper numerically investigates vortex behavior in rotating microcavity polariton Bose-Einstein condensates, revealing parameter regimes where vortices can be suppressed despite high rotation, aiding quantum Hall physics realization.

Contribution

Develops an efficient numerical method to solve the complex Gross-Pitaevskii equation for polariton condensates and explores vortex suppression regimes.

Findings

Vortices can be eliminated at high rotation within certain parameter ranges.

System parameters can be tuned to control vortex formation.

Potential to realize synthetic magnetic fields and quantum Hall effects in polariton systems.

Abstract

In this work we perform a numerical study of a rotating, harmonically trapped, Bose-Einstein condensate of microcavity polaritons. An efficient numerical method (toolbox) to solve the complex Gross-Pitaevskii equation is developed. Using this method, we investigate how the behavior of the number of vortices formed inside the condensate changes as the various system parameters are varied. In contrast to the atomic condensates, we show, there exists an (experimentally realizable) range of parameter values in which all the vortices can be made to vanish even when there is a high rotation. We further explore how this region can be tuned through other free parameters and also discuss how this study can help to realize the synthetic magnetic field for polaritons and hence paving the way for the realization of the quantum Hall physics and many other exotic phenomena.