Cooling Bose-Einstein condensates below 500 picokelvin

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Title Cooling Bose-Einstein condensates below 500 picokelvin
Author Leanhardt, A.E.; Pasquini, T.A .; Saba, M.; Schirotzek, A.; Shin, Y.; Kielpinski, David; Pritchard, D.E.; Ketterle, W.
Journal Name Science
Year Published 2003
Place of publication Washington, D.C.
Publisher American Association for the Advancement of Science
Abstract Spin-polarized gaseous Bose-Einstein condensates were confined by a combination of gravitational and magnetic forces. The partially condensed atomic vapors were adiabatically decompressed by weakening the gravito-magnetic trap to a mean frequency of 1hertz, then evaporatively reduced in size to 2500 atoms. This lowered the peak condensate density to 5 x 1010 atoms per cubic centimeter and cooled the entire cloud in all three dimensions to a kinetic temperature of 450 ± 80 picokelvin. Such spin-polarized, dilute, and ultracold gases are important for spectroscopy, metrology, and atom optics.
Peer Reviewed Yes
Published Yes
Publisher URI http://sciencemag.org/
Alternative URI http://dx.doi.org/10.1126/science.1088827
Copyright Statement Copyright 2003 AAAS. Self-archiving of the author-manuscript version in an institutional repository is not yet supported by this publisher. Use hypertext link above to access the journal website.
Volume 301
Page from 1513
Page to 1515
ISSN 0036-8075
Date Accessioned 2006-07-20
Date Available 2008-11-27T01:03:43Z
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science
Subject Atomic and Molecular Physics
URI http://hdl.handle.net/10072/15492
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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