Adaptable-radius, time-orbiting magnetic ring trap for Bose-Einstein condensates

TL;DR

This paper proposes a theoretical design for an adjustable-radius magnetic ring trap for Bose-Einstein condensates, including a novel time-dependent variant that enhances optical access and spin-flip loss prevention, enabling advanced interferometry experiments.

Contribution

It introduces a scalable, adjustable-radius magnetic ring trap with a new time-dependent variant for improved control and experimental capabilities.

Findings

Design of an adjustable-radius magnetic ring trap.

Introduction of a time-dependent ring trap variant.

Potential for probing fundamental limits of condensate Sagnac interferometry.

Abstract

We theoretically investigate an adjustable-radius magnetic storage ring for laser-cooled and Bose-condensed atoms. Additionally, we discuss a novel time-dependent variant of this and other ring traps. Time-orbiting ring traps provide a high optical access method for spin-flip loss prevention near a storage ring's circular magnetic field zero. Our scalable storage ring will allow one to probe the fundamental limits of condensate Sagnac interferometry.