Model for Diffusion-Induced Ramsey Narrowing

TL;DR

This paper investigates diffusion-induced Ramsey narrowing in atomic systems, deriving and solving an effective diffusion equation to understand how atoms' repeated interactions without coherence loss affect spectral line narrowing.

Contribution

It introduces a model using strong collisions approximation to analyze diffusion-induced Ramsey narrowing, providing solutions for both simplified and real three-dimensional configurations.

Findings

Effective diffusion equation derived and solved

Demonstrates how repeated atomic interactions cause spectral narrowing

Applicable to both low-dimensional models and real 3D systems

Abstract

Diffusion-induced Ramsey narrowing that appears when atoms can leave the interaction region and repeatedly return without lost of coherence is investigated using strong collisions approximation. The effective diffusion equation is obtained and solved for low-dimensional model configurations and three-dimensional real one.