An effective thermal-parametrization theory for the slow-light dynamics in a Doppler-broadened electomagnetically induced transparency medium

TL;DR

This paper develops a temperature-dependent model for slow-light dynamics in a Doppler-broadened EIT medium, accurately matching experimental data and simplifying analysis of thermal effects.

Contribution

It introduces an effective thermal-parametrization theory that incorporates temperature-dependent parameters into the EIT model, enhancing understanding of thermal effects on slow-light propagation.

Findings

The model accurately predicts experimental results.

Thermal effects can be effectively captured with temperature-dependent parameters.

The theory simplifies analysis of thermal influences on EIT-based slow light.

Abstract

We model the effects of atomic thermal motion on the propagation of a light pulse in an electromagnetically induced transparency medium by introducing a set of effectively temperature-dependent parameters, including the Rabi frequency of the coupling field, optical density and relaxation rate of the ground state coherence, into the governing equations. The validity of this effective theory is verified by the close agreement between the theoretical results and the experimental data.