%0 Generic %1 Bloom2013Tests %A Bloom, Ruth S. %A Hu, Ming-Guang %A Cumby, Tyler D. %A Jin, Deborah S. %D 2013 %K efimov %T Tests of universal three-body physics in an ultracold Bose-Fermi mixture %U http://arxiv.org/abs/1304.6989 %X Recent measurements of Efimov resonances in a number of ultracold atom species have revealed an unexpected universality, in which three-body scattering properties are determined by the van der Waals length of the two-body interaction potential. To investigate whether this universality extends to heteronuclear mixtures, we measure loss rate coefficients in an ultracold trapped gas of \$^40\$K and \$^87\$Rb atoms. We find an Efimov-like resonance in the rate of inelastic collisions between \$^40\$K\$^87\$Rb Feshbach molecules and \$^87\$Rb atoms. However, we do not observe any Efimov-related resonances in the rates of inelastic collisions between three atoms. These observations are compared to previous measurements by the LENS group of Efimov resonances in a \$^41\$K and \$^87\$Rb mixture as well as to recent predictions.

@misc{Bloom2013Tests, abstract = {Recent measurements of Efimov resonances in a number of ultracold atom species have revealed an unexpected universality, in which three-body scattering properties are determined by the van der Waals length of the two-body interaction potential. To investigate whether this universality extends to heteronuclear mixtures, we measure loss rate coefficients in an ultracold trapped gas of \$^{40}\$K and \$^{87}\$Rb atoms. We find an Efimov-like resonance in the rate of inelastic collisions between \$^{40}\$K\$^{87}\$Rb Feshbach molecules and \$^{87}\$Rb atoms. However, we do not observe any Efimov-related resonances in the rates of inelastic collisions between three atoms. These observations are compared to previous measurements by the LENS group of Efimov resonances in a \$^{41}\$K and \$^{87}\$Rb mixture as well as to recent predictions.}, added-at = {2014-01-09T15:14:33.000+0100}, archiveprefix = {arXiv}, author = {Bloom, Ruth S. and Hu, Ming-Guang and Cumby, Tyler D. and Jin, Deborah S.}, biburl = {https://www.bibsonomy.org/bibtex/22ba9ab5171377246bc436c43a24bd0ac/jaspervh}, citeulike-article-id = {12303021}, citeulike-linkout-0 = {http://arxiv.org/abs/1304.6989}, citeulike-linkout-1 = {http://arxiv.org/pdf/1304.6989}, day = 25, eprint = {1304.6989}, interhash = {14bed55f6d3f3c57053d31c71a369dfe}, intrahash = {2ba9ab5171377246bc436c43a24bd0ac}, keywords = {efimov}, month = apr, posted-at = {2013-04-26 08:24:18}, priority = {2}, timestamp = {2014-01-09T15:14:33.000+0100}, title = {Tests of universal three-body physics in an ultracold Bose-Fermi mixture}, url = {http://arxiv.org/abs/1304.6989}, year = 2013 }