Application of the theory of excitons to study of the positronium in matter. Optical transition during positronium formation in matter

TL;DR

This paper applies exciton theory to model positronium formation in matter, exploring optical transitions and photonic deexcitation to enhance experimental techniques in solid-state studies.

Contribution

It introduces a novel application of exciton theory to positronium formation, including calculations of photonic transition probabilities during formation.

Findings

Positronium exhibits similarities to excitons in quantum dots.

Photonic deexcitation during positronium formation is theoretically possible.

Detection of these transitions could improve solid matter analysis.

Abstract

Considerable similarity between positronium atom and an exciton in a quantum dot is indicated. Following this, we apply the calculation regime from the theory of excitons to describe some aspects of formation of a positronium in matter. We consider the possibility of photonic deexcitation during Ps formation and show the way of calculation of its probability. The photonic transitions speculated here, if detected, allows improving experimental studies of solid matter with positron techniques.