Time-Averaged Adiabatic Potentials: Versatile traps and waveguides for ultracold quantum gases

TL;DR

This paper introduces time-averaged adiabatic potentials (TAAP), a versatile method for creating various traps and waveguides for ultracold atoms, enabling advanced control for quantum gas experiments.

Contribution

The paper presents a new class of trapping potentials, TAAP, with analytical expressions for different geometries and applications in matter-wave interferometry.

Findings

Successfully demonstrated multiple trap configurations.

Analytical expressions derived for pancake, cigar, and ring traps.

Ring-shaped traps enable tunable interferometry sensitivity.

Abstract

We demonstrate a novel class of trapping potentials, time-averaged adiabatic potentials (TAAP) which allows the generation of a large variety of traps and waveguides for ultracold atoms. Multiple traps can be coupled through controllable tunneling barriers or merged altogether. We present analytical expressions for pancake-, cigar-, and ring- shaped traps. The ring-geometry is of particular interest for guided matter-wave interferometry as it provides a perfectly smooth waveguide of controllable diameter, and thus a tunable sensitivity of the interferometer.