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Experiments on a videotape atom chip: fragmentation and transport studies

Llorente Garcia, I; Darquié, B; Curtis, EA; Sinclair, CDJ; Hinds, EA; (2010) Experiments on a videotape atom chip: fragmentation and transport studies. New Journal of Physics , 12 , Article 093017. 10.1088/1367-2630/12/9/093017. Green open access

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Abstract

This paper reports on experiments with ultracold rubidium atoms confined in microscopic magnetic traps created using a piece of periodically magnetized videotape mounted on an atom chip. The roughness of the confining potential is studied with atomic clouds at temperatures of a few μK and at distances between 30 and 80 μm from the videotape-chip surface. The inhomogeneities in the magnetic field created by the magnetized videotape close to the central region of the chip are characterized in this way. In addition, we demonstrate a novel transport mechanism whereby we convey cold atoms confined in arrays of videotape magnetic micro-traps over distances as large as ~1 cm parallel to the chip surface. This conveying mechanism enables us to survey the surface of the chip and observe potential-roughness effects across different regions.

Type: Article
Title: Experiments on a videotape atom chip: fragmentation and transport studies
Open access status: An open access version is available from UCL Discovery
DOI: 10.1088/1367-2630/12/9/093017
Publisher version: https://doi.org/10.1088/1367-2630/12/9/093017
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10086646
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