Feshbach resonances in the Li-6-K-40 Fermi-Fermi mixture: elastic versus inelastic interactions
Authors: Naik D., Trenkwalder A., Kohstall C., Spiegelhalder F. M., Zaccanti M., Hendl G., Schreck F., Grimm R., Hanna T. M., Julienne P. S.
Autors Affiliation: Austrian Acad Sci, Inst Quantenopt & Quanteninformat, A-6020 Innsbruck, Austria;
Univ Innsbruck, Inst Expt Phys, A-6020 Innsbruck, Austria;
Univ Florence, Dept Phys, LENS, I-50019 Sesto Fiorentino, Italy;
INO CNR, I-50019 Sesto Fiorentino, Italy;
NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA;
USA Univ Maryland, Gaithersburg, MD 20899 USA
Abstract: We present a detailed theoretical and experimental study of Feshbach resonances in the Li-6-K-40 mixture. Particular attention is given to the inelastic scattering properties, which have not been considered before. As an important example, we thoroughly investigate both elastic and inelastic scattering properties of a resonance that occurs near 155 G. Our theoretical predictions based on a coupled channels calculation are found in excellent agreement with the experimental results. We also present theoretical results on the molecular state that underlies the 155 G resonance, in particular concerning its lifetime against spontaneous dissociation. We then present a survey of resonances in the system, fully characterizing the corresponding elastic and inelastic scattering properties. This provides the essential information to identify optimum resonances for applications relying on interaction control in this Fermi-Fermi mixture.
Journal/Review: EUROPEAN PHYSICAL JOURNAL D
Volume: 65 (1-2) Pages from: 55 to: 65
More Information: We thank Bo Gao for stimulating discussions. We acknowledge support by the Austrian Science Fund (FWF) and the European Science Foundation (ESF) within the EuroQUAM/FerMix project and support by the FWF through the SFB FoQuS. T.M.H. and P.S.J. acknowledge support from an AFOSR MURI on Ultracold Molecules.KeyWords: Bose-Einstein condensation; Scattering length; Molecules; Gases; Collisions; Atoms; OscillationsDOI: 10.1140/epjd/e2010-10591-2Citations: 31data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2020-08-09References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here