arXiv:cond-mat/0205310AbstractReferencesReviewsResources
Surface Effects in Magnetic Microtraps
J. Fortagh, H. Ott, S. Kraft, C. Zimmermann
Published 2002-05-15, updated 2002-10-23Version 3
We have investigated Bose-Einstein condensates and ultra cold atoms in the vicinity of a surface of a magnetic microtrap. The atoms are prepared along copper conductors at distances to the surface between 300 um and 20 um. In this range, the lifetime decreases from 20 s to 0.7 s showing a linear dependence on the distance to the surface. The atoms manifest a weak thermal coupling to the surface, with measured heating rates remaining below 500 nK/s. In addition, we observe a periodic fragmentation of the condensate and thermal clouds when the surface is approached.
Comments: 4 pages, 4 figures; v2: corrected references; v3: final version
Journal: Phys. Rev. A 66, 041604(R) (2002)
Categories: cond-mat.soft
Tags: journal article
Related articles: Most relevant | Search more
arXiv:cond-mat/0210527 (Published 2002-10-23)
Surface effects in nucleation and growth of smectic B crystals in thin samples
Anomalous Longitudinal Magnetic Field near the Surface of Copper Conductors
arXiv:1002.2118 [cond-mat.soft] (Published 2010-02-10)
Surface effects in the crystallization process of elastic flexible polymers