Optical purification of materials based on atom walking in traveling-wave lights

TL;DR

This paper introduces an optical method for precise atomic purification using traveling light to differentiate atoms based on their movement, potentially enabling separation of difficult-to-separate isotopes and atoms.

Contribution

The paper presents a novel optical purification technique leveraging atom movement in traveling waves, modeled by Schrödinger equations, expanding cold atom technology applications.

Findings

Atoms move at different speeds depending on mass and optical transition wavelengths.

The method can potentially separate isotopes and atoms that are hard to distinguish.

Analytical solutions demonstrate the feasibility of the approach.

Abstract

An optical method for precise purification of chemical elements is introduced in this paper. The materials are supposed to be in the states of gaseous beams, which are coherently coupled to an external traveling light during purification. Before decoherence occurs, atoms periodically move in the light with different speeds that depends on masses and optical transition wave lengths of these atoms. The speed gradient leads to deflections of different atoms in different directions. The model is described by Schr\"{o}dinger equations with analytical results. This method could be used for some hardly separable atoms and isotopes depending on the condition of atom coherent time. The present work opens a platform for applications of cold atom technology in the purification of atoms and molecules.