Stochastic dynamics of a few sodium atoms in a cold potassium cloud

TL;DR

This paper investigates the stochastic behavior of a small number of sodium atoms within a cold potassium cloud using fluorescence monitoring in a dual-species magneto-optical trap, enabling detailed statistical analysis of their dynamics.

Contribution

It introduces a fit-free method for analyzing sodium atom dynamics in a complex quantum environment, advancing precise statistical studies of few-atom systems.

Findings

Resolved sodium atom dynamics accurately

Developed a fit-free analysis method

Enhanced understanding of atom behavior in quantum environments

Abstract

We report on the stochastic dynamics of a few sodium atoms immersed in a cold potassium cloud. The studies are realized in a dual-species magneto-optical trap by continuously monitoring the emitted fluorescence of the two atomic species. We investigate the time evolution of sodium and potassium atoms in a unified statistical language and study the detection limits. We resolve the sodium atom dynamics accurately, which provides a fit free analysis. This work paves the path towards precise statistical studies of the dynamical properties of few atoms immersed in complex quantum environments.