Dynamics of exciton-polaritons in a Josephson double dimer

TL;DR

This paper investigates the coupled dynamics of exciton-polaritons in a double-well system, revealing how Josephson oscillations interact with polarization rotation, supported by analytical and numerical analysis.

Contribution

It introduces the concept of a Josephson double dimer, analyzing the strong coupling between Josephson oscillations and polarization rotation in exciton-polaritons.

Findings

Josephson oscillations are strongly coupled to polarization rotation.

Periodic exchange of Josephson excitation between polarizations.

Linearized analysis matches numerical simulations with experimental parameters.

Abstract

We study the dynamics of exciton-polaritons in a double-well configuration. The system consists of two weakly coupled Bose-Josephson junctions, each corresponding to a different circular polarization of the polaritons, forming a {\it Josephson double dimer}. We show that the Josephson oscillation between the wells is strongly coupled to the polarization rotation and that consequently Josephson excitation is periodically exchanged between the two polarizations. Linearized analysis agrees well with numerical simulations using typical experimental parameters.