Bartenstein, M.
, Altmeyer, A.
, Riedl, S.
, Geursen, R.
, Jochim, S.
, Chin, C.
, Hecker Denschlag, J.
, Grimm, R.
, Simoni, A.
, Tiesinga, E.
, Williams, C.
and Julienne, P.
(2005),
Precise Determination of <sup>6</sup>Li Cold Collision Parameters by Radio-Frequency Spectroscopy on Weakly Bound Molecules, Physical Review Letters
(Accessed October 20, 2025)
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Precise Determination of 6Li Cold Collision Parameters by Radio-Frequency Spectroscopy on Weakly Bound Molecules
Published
Author(s)
M Bartenstein, A Altmeyer, S Riedl, R Geursen, S Jochim, C Chin, J Hecker Denschlag, R Grimm, , , ,
Abstract
Radio-frequency spectroscopy on weakly bound 6Li_2 molecules determines to high precision the molecular binding energies and the energy splitting between molecular states. By fitting the measurement to a multi-channel quantum scattering model, we determine the singlet and triplet scattering lengths as a_S=45.167(8) a_0 and a_T=-2140(18) a_0 (1 a_0 = 0.0529177 nm). The positions of the broad Feshbach resonances in the lowest three s-wave scattering channels are 83.41(15) mT, 69.04(5) mT, and 81.12(10) mT, respectively.Citation
Physical Review Letters
Volume
94
Pub Type
Journals
Keywords
interatomic potentials, laser cooling, RF spectroscopy, ultracold molecules
Citation
Issues
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Created February 28, 2005, Updated October 12, 2021