Thermally Induced Losses in Ultra-Cold Atoms Magnetically Trapped Near Room-Temperature Surfaces
By Dave Harber, J. M. Mcguirk, J. Obrecht, E. A. Cornell. 2003
157 citations recorded by the source corpus.
We have measured magnetic trap lifetimes of ultra-cold 87Rb atoms at distances of 5–1000 µm from surfaces of conducting metals with varying resistivity. Good agreement is found with a theoretical model for losses arising from near-field magnetic thermal noise, confirming the complications associated with holding trapped atoms close to conducting surfaces. A dielectric surface (silicon) was found in contrast to be so benign that we are able to evaporatively cool atoms to a Bose–Einstein condensate by using the surface to selectively adsorb higher energy atoms.
Subfields: Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/26b3eb6d98ebd6c7ee8dd462fbe309f5ac6d68bb
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In Atomic and Molecular Physics, and Optics
- Galina L. Klimchitskaya
- Umar Mohideen
- Vladimir M. Mostepanenko
- Kai Bongs
- C. Zimmermann
- Klaus Sengstock
- J. Fortágh
- Romesh C. Batra
Citations in the corpus
- Magnetic microtraps for ultracold atoms (2007, background): “Harber et al. 2003 succeeded to cool a cloud of rubidium by this means below the critical temperature of Bose-Einstein condensation.”
- The Casimir force between real materials: Experiment and theory (2009, methodology): “The detailed description of the experimental setup, calibration procedures and measurements is presented in the papers by McGuirk et al. (2004) and Harber et al. (2003, 2005).”
- Physics with coherent matter waves (2004, background): “The proximity of a room temperature surface in the miniaturised atom chip setups introduces new heating effects, which were proposed by [194, 195, 198, 202] and also recently investigated in several experiments [199, 200, 201].”