Physics – Condensed Matter – Quantum Gases
Scientific paper
2010-10-18
Eur. Phys. J. D 65, 55-65 (2011)
Physics
Condensed Matter
Quantum Gases
Submitted to EPJD, EuroQUAM special issues "Cold Quantum Matter - Achievements and Prospects", v2 with updated calibration of
Scientific paper
10.1140/epjd/e2010-10591-2
We present a detailed theoretical and experimental study of Feshbach resonances in the 6Li-40K 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 155G 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.
Grimm Rudolf
Hanna Thomas M.
Hendl G.
Julienne Paul S.
Kohstall Christoph
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