The study of cold atoms is currently an extremely exciting field. New technologies are allowing us to reach much lower temperatures experimentally. Although the Bose-Einstein
condensate was predicted in 1925, it was not observed experimentally until recently. Using laser technology and evaporative cooling techniques, we can cool and trap the atoms. A small system of
atoms at very low temperatures has many interesting properties. The effect of rotation on a Bose gas is different from what is seen in the macroscopic world, and it is thus interesting to study how
angular momentum enters the system. In a macroscopic system, angular momentum is gained through frictional forces. Studying a rotating Bose gas allows us to look at friction at the atomic scale. We
study two atoms in a rotating harmonic trap.
Publisher
Cornell Center for Materials Research
Date
2007-08-29
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Additional Notes
Support for the CCMR is provided through the NSF Grant DMR 0520404, part of the NSF MRSEC Program. Additional support is provided by Cornell University, the State of New York, and
by industrial sources.
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