All-optical 3D atomic loops generated with Bessel light fields

TL;DR

This paper explores how Bessel light fields can be used to generate and manipulate 3D atomic loops, demonstrating their effectiveness for trapping and controlling cold atoms through light-matter interactions.

Contribution

It provides a comparative analysis of Bessel beam configurations for all-optical atomic manipulation, highlighting new methods for trapping and transporting cold atoms.

Findings

Bessel beams enable efficient atomic trapping and manipulation.

Interchange of momentum, energy, and angular momentum facilitates control of atomic motion.

Multiple configurations of Bessel beams offer versatile tools for cold atom experiments.

Abstract

The propagation invariance of Bessel beams as well as their transversal structure are used to perform a comparative analysis of their effect on cold atoms for four different configurations and combinations thereof. We show that, even at temperatures for which the classical description of the atom center of mass motion is valid, the interchange of momentum, energy and orbital angular momentum between light and atoms yields efficient tools for all-optical trapping, transporting and, in general, manipulating the state of motion of cold atoms.