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Phys. Rev. A 76, 043624 (2007) [5 pages]

Atom trapping with a thin magnetic film

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Micah Boyd, Erik W. Streed, Patrick Medley, Gretchen K. Campbell, Jongchul Mun, Wolfgang Ketterle, and David E. Pritchard*
MIT-Harvard Center for Ultracold Atoms, Research Laboratory of Electronics and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

Received 16 August 2006; revised 26 August 2007; published 22 October 2007

We have created a 87Rb Bose-Einstein condensate in a magnetic trapping potential produced by a hard disk platter written with a periodic pattern. Cold atoms were loaded from an optical dipole trap and then cooled to Bose-Einstein condensation on the surface with radio-frequency evaporation. Fragmentation of the atomic cloud due to imperfections in the magnetic structure was observed at distances closer than 40 μm from the surface. Attempts to use the disk as an atom mirror showed dispersive effects after reflection.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.76.043624
DOI:
10.1103/PhysRevA.76.043624
PACS:
03.75.Be, 03.75.Lm, 75.50.Ss, 75.70.−i

*URL: http://cua.mit.edu/ketterle-group/

 
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