Atomic absorption and emission in non-product states

TL;DR

This paper develops a comprehensive framework for understanding atomic absorption and emission in non-product states, highlighting fundamental differences between entanglement and (anti)symmetrization effects on these processes.

Contribution

It introduces a general theoretical framework extending previous results to describe atomic absorption and emission in non-product states, revealing key differences between entanglement and (anti)symmetrization.

Findings

Emission modifications occur in all (anti)symmetrized states.

Only specific entangled states show emission property changes.

The framework clarifies distinctions between entanglement and (anti)symmetrization effects.

Abstract

The properties of non-product states, both (anti)symmetrized and entangled, have been extensively studied in the literature. In this paper, by extending previous partial results, we introduce a general framework to describe atomic absorption and emission in these states. Our approach shows the existence of some fundamental differences between entanglement and (anti)symmetrization and between absorption and emission. For instance, modifications of the emission properties with respect to that of uncorrelated systems occur for any (anti)symmetrized state but only for some very specific entangled states.