Precise Characterization of Few-body Interactions in 39K
Abstract
Dilute ultracold quantum gases provide an ideal platform to study short-range interactions in a controlled way. Bosonic species present rich physics owing to the two-body and three-body interactions. We will report some of the first results taken with our new 39K machine. By doing radio frequency (r.f.) dissociation, we are able to measure the binding energy of Feshbach molecules within an uncertainty of sub-kilohertz. This spectroscopic method not only enables us to locate the pole of the Feshbach resonance with great precision but also assists the detection of small energy shift due to few-body interactions.
NSF, PFC, NASA, NIST.- Publication:
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APS Division of Atomic, Molecular and Optical Physics Meeting Abstracts
- Pub Date:
- May 2018
- Bibcode:
- 2018APS..DMPE01113X