Article

Abstract

• A novel atom-molecule conversion technique has been investigated. Ultracold ⁸⁵Rb atoms sitting in a dc magnetic field near the 155 G Feshbach resonance are associated by applying a small sinusoidal oscillation to the magnetic field. There is resonant atom to molecule conversion when the modulation frequency closely matches the molecular binding energy. We observe that the atom to molecule conversion efficiency depends strongly on the frequency, amplitude, and duration of the applied modulation and on the phase space density of the sample. This technique offers high conversion efficiencies without the necessity of crossing or closely approaching the Feshbach resonance and allows precise spectroscopic measurements. Efficiencies of 55% have been observed for pure Bose-Einstein condensates.

Creator

• Hodby, E.
• Wieman, Carl E.
• Thompson, Sarah T.

Date Issued

• 2005-11-02

Academic Affiliation

• Physics

Journal Title

• Physical Review Letters

Journal Issue/Number

• 19

Journal Volume

• 95

File Extent

• 190404-1-190404-4

Ultima modifica

• 2019-12-05

Resource Type

• Article

Dichiarazione dei diritti

• In Copyright

DOI

• 10.1103/PhysRevLett.95.190404

ISSN

• 0031-9007

Language

• English [eng]

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