Formation of fermionic molecules via interisotope Feshbach resonances

E. G. M. v. Kempen; B. Marcelis; S. J. J. M. F. Kokkelmans

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Formation of fermionic molecules via interisotope Feshbach resonances

E. G. M. v. Kempen·B. Marcelis·S. J. J. M. F. Kokkelmans

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Abstract

We perform an analysis of recent experimental measurements and improve the lithium interaction potentials. For $^6$Li a consistent description can be given. We discuss theoretical uncertainties for the position of the wide $^6$Li Feshbach resonance, and we present an analytic scattering model for this resonance, based on the inclusion of a field-dependent virtual open-channel state. We predict new Feshbach resonances for the $^6$Li-$^7$Li system, and their importance for different types of crossover superfluidity models is discussed.

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E. G. M. v. Kempen, B. Marcelis, S. J. J. M. F. Kokkelmans. 2004-09-03. Formation of fermionic molecules via interisotope Feshbach resonances. https://arxiv.org/abs/cond-mat/0406722

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