Role of the intraspecies scattering length in the Efimov scenario with large mass difference

dc.citation.doi10.1103/PhysRevA.95.062708
dc.citation.issn2469-9926
dc.citation.issue6
dc.citation.jtitlePhysical Review A
dc.citation.volume95
dc.contributor.authorHäfner, Stephan
dc.contributor.authorUlmanis, Juris
dc.contributor.authorKuhnle, Eva D.
dc.contributor.authorWang, Yujun
dc.contributor.authorGreene, Chris H.
dc.contributor.authorWeidemüller, Matthias
dc.date.accessioned2023-12-07T22:35:26Z
dc.date.available2023-12-07T22:35:26Z
dc.date.issued2017-06-29
dc.date.published2017-06-29
dc.description.abstractWe experimentally and theoretically study the effect of the intraspecies scattering length onto the heteronuclear Efimov scenario, following up on our earlier observation of Efimov resonances in an ultracold Cs-Li mixture for negative [Pires et al., Phys. Rev. Lett. 112, 250404 (2014)] and positive Cs-Cs scattering length [Ulmanis et al., Phys. Rev. Lett. 117, 153201 (2016)]. Three theoretical models of increasing complexity are employed to quantify its influence on the scaling factor and the three-body parameter: a simple Born-Oppenheimer picture, a zero-range theory, and a spinless van der Waals model. These models are compared to Efimov resonances observed in an ultracold mixture of bosonic 133Cs and fermionic 6Li atoms close to two Cs-Li Feshbach resonances located at 843 G and 889 G, characterized by different sign and magnitude of the Cs-Cs interaction. By changing the sign and magnitude of the intraspecies scattering length different scaling behaviors of the three-body loss rate are identified, in qualitative agreement with theoretical predictions. The three-body loss rate is strongly influenced by the intraspecies scattering length.
dc.identifier.urihttps://hdl.handle.net/2097/43987
dc.relation.urihttps://link.aps.org/doi/10.1103/PhysRevA.95.062708
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dc.titleRole of the intraspecies scattering length in the Efimov scenario with large mass difference
dc.typeText

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