Full Stark Control of Polariton States on a Spin-Orbit Hypersphere

TL;DR

This paper introduces a model for controlling polariton states combining light's angular momentum and polarization using a spin-orbit hypersphere, enabling ultrafast manipulation and multi-bit logic within a single system.

Contribution

It develops a spin-orbit Poincaré hypersphere model and demonstrates full ultrafast Stark control of polariton states, enabling multi-bit logic operations.

Findings

Full ultrafast Stark control of spin-orbit states achieved

Control of states on multiple spin-orbit spheres demonstrated

Potential for multi-bit logic within a single physical system

Abstract

The orbital angular momentum and the polarisation of light are physical quantities widely investigated for classical and quantum information processing. In this work we propose to take advantage of strong light-matter coupling, circular-symmetric confinement, and transverse-electric transverse-magnetic splitting to exploit states where these two degrees of freedom are combined. To this end we develop a model based on a spin-orbit Poincar\'{e} hypersphere. Then we consider the example of semiconductor polariton systems and demonstrate full ultrafast Stark control of spin-orbit states. Moreover, by controlling states on three different spin-orbit spheres and switching from one sphere to another we demonstrate the control of different logic bits within one single physical system.