Entanglement generation in microcavity polariton devices

TL;DR

This paper theoretically investigates how microcavity exciton-polaritons can generate entanglement through luminescence dynamics and polariton-polariton scattering in various cavity configurations, identifying promising experimental schemes.

Contribution

It derives general scattering expressions and selection rules, evaluating parametric schemes for entanglement generation in microcavity polariton systems.

Findings

Identifies promising entanglement schemes in microcavity polariton devices.

Provides general formulas and selection rules for polariton scattering.

Evaluates experimental feasibility of different parametric scattering schemes.

Abstract

Entanglement generation in microcavity exciton-polaritons is an interesting application of the peculiar properties of these half-light/half-matter quasiparticles. In this paper we theoretically investigate their luminescence dynamics and entanglement formation in single, double, and triple cavities. We derive general expressions and selection rules for polariton-polariton scattering. We evaluate a number of possible parametric scattering schemes in terms of entanglement, and identify the ones that are experimentally most promising.