title: Photoassociation of sodium in a Bose-Einstein condensate.
abstract: We form ultracold Na2 molecules by single-photon photoassociation of a Bose-Einstein condensate, measuring the photoassociation rate, linewidth, and light shift of the J = 1, v = 135 vibrational level of the A1 Sigma (+)(u) molecular state. The photoassociation rate constant increases linearly with intensity, even where it is predicted that many-body effects might limit the rate. Our observations are in good agreement with a two-body theory having no free parameters.
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA.
authors.forename: C
authors.initials: C
authors.lastname: McKenzie
authors.forename: J
authors.initials: J
authors.lastname: Hecker Denschlag
authors.forename: H
authors.initials: H
authors.lastname: Häffner
authors.forename: A
authors.initials: A
authors.lastname: Browaeys
authors.forename: Luís E E
authors.initials: LE
authors.lastname: de Araujo
authors.forename: F K
authors.initials: FK
authors.lastname: Fatemi
authors.forename: K M
authors.initials: KM
authors.lastname: Jones
authors.forename: J E
authors.initials: JE
authors.lastname: Simsarian
authors.forename: D
authors.initials: D
authors.lastname: Cho
authors.forename: A
authors.initials: A
authors.lastname: Simoni
authors.forename: E
authors.initials: E
authors.lastname: Tiesinga
authors.forename: P S
authors.initials: PS
authors.lastname: Julienne
authors.forename: K
authors.initials: K
authors.lastname: Helmerson
authors.forename: P D
authors.initials: PD
authors.lastname: Lett
authors.forename: S L
authors.initials: SL
authors.lastname: Rolston
authors.forename: W D
authors.initials: WD
authors.lastname: Phillips