Manipulating polariton condensates by Rashba-Dresselhaus coupling at room temperature

TL;DR

This paper demonstrates the manipulation of exciton polariton condensates at room temperature using Rashba-Dresselhaus spin-orbit coupling, creating an artificial gauge field that splits condensates with opposite spins in momentum and real space.

Contribution

It introduces a method to control polariton condensates via synthetic gauge fields induced by RD spin-orbit coupling at room temperature.

Findings

Artificial gauge field realized on CsPbBr3 exciton polariton condensate.

Splitting of condensates with opposite spins in momentum and real space.

Manipulation of polariton condensates using spin-orbit coupling at room temperature.

Abstract

The spin-orbit coupling plays an important role in the spin Hall effect and the topological insulators. In addition, the spin-orbit coupled Bose-Einstein condensates show remarkable quantum many-body phase transition. In this work we tune the exciton polariton condensate by virtue of the Rashba-Dresselhaus (RD) spin-orbit coupling in a liquid-crystal filled microcavity where perovskite CsPbBr3 microplates act as the gain material at room temperature. We realize an artificial gauge field on the CsPbBr3 exciton polariton condensate, which splits the condensates with opposite spins in both momentum and real spaces. Our work paves the way to manipulate the exciton polariton condensate with a synthetic gauge field based on the RD spin-orbit coupling at room temperature.