Spin multistability in dissipative polariton channels

TL;DR

This paper develops a comprehensive model for spinor cavity polaritons in one-dimensional channels, exploring how interactions, magnetic fields, temperature, and laser phase influence spin multistability and hysteresis, with potential applications in polariton-based devices.

Contribution

It introduces a detailed theoretical framework for spin dynamics in polariton channels, emphasizing the role of laser phase and temperature in multistability phenomena.

Findings

Multistability persists at high temperatures with longitudinal-transverse splitting.

Laser phase significantly affects polarization dynamics.

Multistability and hysteresis depend on interactions and magnetic fields.

Abstract

We present a model for theoretical description of the dynamics of a system of spinor cavity polaritons in real space and time accounting for all relevant types of the interactions and effective magnetic fields. We apply our general formalism for the consideration of the polarization dynamics of the coherently driven one dimensional polariton channel. We investigate effect of the temperature and the longitudinal-transverse splitting on the spin (polarization) multistability and hysteresis arising from the polarization-dependent polariton-polariton interaction. We show that the effect of the phase of the driving laser pump is as important as its strength and demonstrate that the multistability behavior can survive up to high temperatures in presence of longitudinal-transverse splitting.