Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
T. Schuster, R. Scelle, A. Trautmann, J. Appmeier, S. Knoop, Eite Tiesinga, E. Tiemann
We have studied magnetic Feshbach resonances in an ultracold sample of Na prepared in the absolute hyperfine ground. W e report on the observation of three s-, eight d-, and three g-wave Feshbach resonances, including a more precis e determination of the two known s-wave resonances, and one s-wave resonance at a magnetic field exceeding 200 mT . Using a close-coupling calculation we have improved the sodium ground-state potentials by taking into account these new experimental data. In addition, a description of the molecular states leading to the Feshbach resonances in terms of the Asymptotic Bound-state Model is presented.
, Scelle, R.
, Trautmann, A.
, Appmeier, J.
, Knoop, S.
, Tiesinga, E.
and Tiemann, E.
Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium, Physical Review A, [online], https://doi.org/10.1103/PhysRevA.83.042704
(Accessed June 24, 2021)