Phys. Rev. A 72, 031603(R) (2005) [4 pages]

Bose-Einstein condensation on a permanent-magnet atom chip

Abstract

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C. D. J. Sinclair, E. A. Curtis, I. Llorente Garcia, J. A. Retter^*, B. V. Hall^†, S. Eriksson, B. E. Sauer, and E. A. Hinds^‡
Centre for Cold Matter, Blackett Laboratory, Imperial College, Prince Consort Road, London SW7 2BW, United Kingdom

Received 31 March 2005; published 21 September 2005

We have produced a Bose-Einstein condensate on a permanent-magnet atom chip based on periodically magnetized videotape. We observe the expansion and dynamics of the condensate in one of the microscopic waveguides close to the surface. The lifetime for atoms to remain trapped near this dielectric material is significantly longer than above a metal surface of the same thickness. These results illustrate the suitability of microscopic permanent-magnet structures for quantum-coherent preparation and manipulation of cold atoms.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.72.031603

DOI:

10.1103/PhysRevA.72.031603

PACS:

03.75.Kk, 03.75.Be, 34.50.Dy, 39.25.+k

^*Present address: Laboratoire Charles Fabry de l’Institut d’Optique, UMR8501 du CNRS, 91403 Orsay Cedex, France.

^†Present address: Centre for Atom Optics and Ultrafast Spectroscopy, Swinburne University of Technology, Melbourne, Australia.

^‡Electronic address: ed.hinds@imperial.ac.uk

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Phys. Rev. A 72, 031603(R) (2005) [4 pages]

Bose-Einstein condensation on a permanent-magnet atom chip