Precise determination of $^6$Li cold collision parameters by radio-frequency spectroscopy on weakly bound molecules
Other Condensed Matter
2009-11-10 v1
Abstract
We employ radio-frequency spectroscopy on weakly bound Li molecules to precisely determine the molecular binding energies and the energy splittings between molecular states for different magnetic fields. These measurements allow us to extract the interaction parameters of ultracold Li atoms based on a multi-channel quantum scattering model. We determine the singlet and triplet scattering lengths to be and (1 = 0.0529177 nm), and the positions of the broad Feshbach resonances in the energetically lowest three wave scattering channels to be 83.41(15) mT, 69.04(5) mT, and 81.12(10) mT.
Keywords
Cite
@article{arxiv.cond-mat/0408673,
title = {Precise determination of $^6$Li cold collision parameters by radio-frequency spectroscopy on weakly bound molecules},
author = {M. Bartenstein and A. Altmeyer and S. Riedl and R. Geursen and S. Jochim and C. Chin and J. Hecker Denschlag and R. Grimm and A. Simoni and E. Tiesinga and C. J. Williams and P. S. Julienne},
journal= {arXiv preprint arXiv:cond-mat/0408673},
year = {2009}
}