A hexapole-compensated magneto-optical trap on a mesoscopic atom chip

TL;DR

This paper introduces a novel mesoscopic wire-based magneto-optical trap on an atom chip that achieves high atom capture rates and allows for scalable, rapid Bose-Einstein condensate production without external bias fields.

Contribution

It presents a new trap design with minimized field distortions using a mesoscopic wire structure placed outside the vacuum, enabling high loading rates and scalable condensate generation.

Findings

Loading rate of 8.4×10^10 atoms/s

Maximum of 8.7×10^9 captured atoms

Facilitates rapid, parallel Bose-Einstein condensate production

Abstract

Magneto-optical traps on atom chips are usually restricted to small atomic samples due to a limited capture volume caused primarily by distorted field configurations. Here we present a magneto-optical trap with minimized distortions based on a mesoscopic wire structure which provides a loading rate of 8.4 10^10 atoms/s and a maximum number of 8.7 10^9 captured atoms. The wire structure is placed outside of the vacuum to enable a further adaptation to new scientific objectives. Since all magnetic fields are applied locally without the need for external bias fields, the presented setup will facilitate parallel generation of Bose-Einstein condensates on a conveyor belt with a cycle rate above 1 Hz.