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. 10.1126/science.1088827
%0 Journal Article
%1 LeaPasKet03
%A Leanhardt, A. E.
%A Pasquini, T. A.
%A Saba, M.
%A Schirotzek, A.
%A Shin, Y.
%A Kielpinski, D.
%A Pritchard, D. E.
%A Ketterle, W.
%D 2003
%J Science
%K bec, qip-special
%N 5639
%P 1513--1515
%R 10.1126/science.1088827
%T Cooling Bose-Einstein Condensates Below 500 Picokelvin
%U http://dx.doi.org/10.1126/science.1088827
%V 301
%X 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. 10.1126/science.1088827
@article{LeaPasKet03,
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. 10.1126/science.1088827},
added-at = {2019-02-26T15:22:34.000+0100},
author = {Leanhardt, A. E. and Pasquini, T. A. and Saba, M. and Schirotzek, A. and Shin, Y. and Kielpinski, D. and Pritchard, D. E. and Ketterle, W.},
biburl = {https://www.bibsonomy.org/bibtex/2d0cedef548f0529fb82f34cb1c46a663/rspreeuw},
citeulike-article-id = {6943611},
citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.1088827},
citeulike-linkout-1 = {http://www.sciencemag.org/cgi/content/abstract/301/5639/1513},
citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/12970559},
citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=12970559},
day = 12,
doi = {10.1126/science.1088827},
interhash = {6464f42cbddbb49d6cfbe2ec7d028aee},
intrahash = {d0cedef548f0529fb82f34cb1c46a663},
journal = {Science},
keywords = {bec, qip-special},
month = sep,
number = 5639,
pages = {1513--1515},
pmid = {12970559},
posted-at = {2010-04-28 11:07:02},
priority = {2},
timestamp = {2019-02-26T15:22:34.000+0100},
title = {{Cooling Bose-Einstein Condensates Below 500 Picokelvin}},
url = {http://dx.doi.org/10.1126/science.1088827},
volume = 301,
year = 2003
}