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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, Andrea Simoni, Eite Tiesinga, Carl J. Williams, Paul S. Julienne
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.
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 11, 2025)