Many-Body Effects in a Model of Electromagnetically Induced Transparency

TL;DR

This paper investigates how inter-band interactions influence the absorption and transparency properties in a semi-classical model of electromagnetically induced transparency, using a non-Hermitian Hamiltonian to account for particle decay.

Contribution

It introduces a consistent approach with a non-Hermitian Hamiltonian to analyze many-body effects in EIT, enabling study of particle interactions across various parameters.

Findings

Inter-band interactions significantly modify the absorption profile.

Particle decay effects are effectively modeled with a non-Hermitian Hamiltonian.

The response varies with the number of particles and interaction strength.

Abstract

We study the effect of inter-band interactions in the absorption profile of a semi-classical model describing electromagnetically induced transparency. We develop a consistent approach using a non-hermitian Hamiltonian to model particle decay. This allow us to characterize the system response for different number of particles so that the effect of particle-interaction on the transmission profile can be studied over a wide range of characteristic parameters.