All-Optical Formation of an Atomic Bose-Einstein Condensate
Journal Article
·
· Physical Review Letters
We have created a Bose-Einstein condensate (BEC) of {sup 87}Rb atoms directly in an optical trap. We employ a quasielectrostatic dipole force trap formed by two crossed CO{sub 2} laser beams. Loading directly from a sub-Doppler laser-cooled cloud of atoms results in initial phase space densities of {similar_to}1/200 . Evaporatively cooling through the BEC transition is achieved by lowering the power in the trapping beams over {similar_to}2 s . The resulting condensates are F=1 spinors with 3.5{times}10{sup 4} atoms distributed between the m{sub F}=({minus}1,0,1) states.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204761
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 87; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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