Bose-Einstein condensation in a circular waveguide

TL;DR

This paper reports the creation of Bose-Einstein condensates in a ring-shaped magnetic waveguide, enabling studies of vorticity and potential rotation sensing applications in a multiply-connected geometry.

Contribution

It demonstrates the formation of BECs in a novel ring-shaped magnetic waveguide, opening new avenues for quantum fluid dynamics and rotation sensing.

Findings

BECs successfully produced in a ring-shaped waveguide

Condensates propagate around the ring multiple times

Ring geometry suitable for vorticity studies and rotation sensors

Abstract

We have produced Bose-Einstein condensates in a ring-shaped magnetic waveguide. The few-millimeter diameter non-zero bias ring is formed from a time-averaged quadrupole ring. Condensates which propagate around the ring make several revolutions within the time it takes for them to expand to fill the ring. The ring shape is ideally suited for studies of vorticity in a multiply-connected geometry and is promising as a rotation sensor.