Observation of interspecies 6Li- 133Cs feshbach resonances

• Verfasst von: Repp, Marc [VerfasserIn]
• Verfasst von: Pires, Rico [VerfasserIn]
• Verfasst von: Ulmanis, Juris [VerfasserIn]
• Verfasst von: Heck, Robert [VerfasserIn]
• Verfasst von: Kuhnle, Eva [VerfasserIn]
• Verfasst von: Weidemüller, Matthias [VerfasserIn]
• Verfasst von: Tiemann, E. [VerfasserIn]
• Titel: Observation of interspecies 6Li- 133Cs feshbach resonances
• Verf.angabe: M. Repp, R. Pires, J. Ulmanis, R. Heck, E.D. Kuhnle, and M. Weidemüller, E. Tiemann
• E-Jahr: 2013
• Jahr: 3 January 2013
• Umfang: 5 S.
• Fussnoten: Im Text sind "6" und "133" hochgestellt ; Gesehen am 03.01.2022
• Titel Quelle: Enthalten in: Physical review / A
• Ort Quelle: College Park, Md., 1970
• Jahr Quelle: 2013
• Band/Heft Quelle: 87(2013), 1 vom: Jan., Artikel-ID 010701, Seite 1-5
• ISSN Quelle: 1094-1622
• DOI: doi:10.1103/PhysRevA.87.010701
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 178445950X

Abstract

We report on the observation of 19 interspecies Feshbach resonances in an optically trapped ultracold Bose-Fermi mixture of 133Cs and 6Li in the two energetically lowest spin states. We assign the resonances to s- and p-wave molecular channels by a coupled-channels calculation, resulting in an accurate determination of LiCs ground-state potentials. Fits of the resonance position based on the undressed asymptotic bound state model do not provide the same level of accuracy as the coupled-channels calculation. Several broad s-wave resonances provide prospects to create fermionic LiCs molecules with a large dipole moment via Feshbach association followed by stimulated Raman passage. Two of the s-wave resonances overlap with a zero crossing of the Cs scattering length, which offers prospects for the investigation of polarons in an ultracold Li-Cs mixture.