Optical circuits based on Polariton Neurons in Semiconductor Microcavities

TL;DR

This paper demonstrates how polarization multistability of polaritons in semiconductor microcavities can be used to create optical circuits with neurons and logic gates, enabling integrated all-optical processing.

Contribution

It introduces a novel approach to optical circuit design using polariton neurons and polarization-based logic gates within a single semiconductor microcavity.

Findings

Polariton polarization multistability enables signal conduction along controlled channels.

Binary logic gates can be realized through polariton spin interactions.

Multiple gates can be integrated into a single microcavity circuit.

Abstract

By exploiting the polarization multistability of polaritons, we show that polarized signals can be conducted in the plane of a semiconductor microcavity along controlled channels or "neurons". Furthermore due to the interaction of polaritons with opposite spins it is possible to realize binary logic gates operating on the polarization degree of freedom. Multiple gates can be integrated together to form an optical circuit contained in a single semiconductor microcavity.