Buffer-Gas Cooled Bose-Einstein Condensate
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Doret-2009-Buffer-Gas Cooled Bo.pdf
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Author(s)
Ketterle, Wolfgang
Connolly, Colin B.
Doyle, John M.
Doret, S. Charles
Date Issued
September 2009
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Doret, S. Charles et al. “Buffer-Gas Cooled Bose-Einstein Condensate.” Physical Review Letters 103.10 (2009): 103005. © 2009 The American Physical Society.
Version
Final published version
Abstract
We report the creation of a Bose-Einstein condensate using buffer-gas cooling, the first realization of Bose-Einstein condensation using a broadly general method which relies neither on laser cooling nor unique atom-surface properties. Metastable helium ([superscript 4]He[superscript *]) is buffer-gas cooled, magnetically trapped, and evaporatively cooled to quantum degeneracy. 10[superscript 11] atoms are initially trapped, leading to Bose-Einstein condensation at a critical temperature of 5 μK and threshold atom number of 1.1×10 [superscript 6]. This method is applicable to a wide array of paramagnetic atoms and molecules, many of which are impractical to laser cool and impossible to surface cool.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevLett.103.103005
