Phys. Rev. Lett. 98, 263201 (2007) [4 pages]Roughness Suppression via Rapid Current Modulation on an Atom ChipReceived 29 January 2007; published 25 June 2007 We present a method to suppress the roughness of the potential of a wire-based, magnetic atom guide: modulating the wire current at a few tens of kHz, the potential roughness, which is proportional to the wire current, averages to zero. Using ultracold 87Rb clouds, we show experimentally that modulation reduces the roughness by at least a factor five without measurable heating or atom loss. This roughness suppression results in a dramatic reduction of the damping of center-of-mass oscillations. © 2007 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.98.263201
DOI:
10.1103/PhysRevLett.98.263201
PACS:
39.25.+k, 03.75.Be
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.