%0 Generic %1 knoop2014ultracold %A Knoop, S. %A Żuchowski, P. S. %A Kȩdziera, D. %A Mentel, Ł. %A Puchalski, M. %A Mishra, H. P. %A Flores, A. S. %A Vassen, W. %D 2014 %K interesting %T Ultracold mixtures of metastable He and Rb: scattering lengths from ab initio calculations and thermalization measurements %U http://arxiv.org/abs/1404.4826 %X We have investigated the ultracold interspecies scattering properties of metastable triplet He and Rb. We performed state-of-the-art ab initio calculations of the relevant interaction potential, and measured the interspecies elastic cross section for an ultracold mixture of metastable triplet $^4$He and $^87$Rb at a temperature of 0.5 mK. Our combined theoretical and experimental study gives an interspecies scattering length $a_4+87=+17^+1_-4$ $a_0$, which prior to this work was unknown. More general, our work shows the possibility of obtaining accurate scattering lengths using ab initio calculations for a system containing a heavy, many-electron atom, such as Rb.

@misc{knoop2014ultracold, abstract = {We have investigated the ultracold interspecies scattering properties of metastable triplet He and Rb. We performed state-of-the-art ab initio calculations of the relevant interaction potential, and measured the interspecies elastic cross section for an ultracold mixture of metastable triplet $^4$He and $^{87}$Rb at a temperature of 0.5 mK. Our combined theoretical and experimental study gives an interspecies scattering length $a_{4+87}=+17^{+1}_{-4}$ $a_0$, which prior to this work was unknown. More general, our work shows the possibility of obtaining accurate scattering lengths using ab initio calculations for a system containing a heavy, many-electron atom, such as Rb.}, added-at = {2014-04-21T15:52:13.000+0200}, author = {Knoop, S. and Żuchowski, P. S. and Kȩdziera, D. and Mentel, Ł. and Puchalski, M. and Mishra, H. P. and Flores, A. S. and Vassen, W.}, biburl = {https://www.bibsonomy.org/bibtex/235a624e8107a0db6315a75ccd66ec42b/scavgf}, description = {Ultracold mixtures of metastable He and Rb: scattering lengths from ab initio calculations and thermalization measurements}, interhash = {5869422741527e010d2ced8dae7a92dc}, intrahash = {35a624e8107a0db6315a75ccd66ec42b}, keywords = {interesting}, note = {cite arxiv:1404.4826Comment: 6 pages, 4 figures, manuscript includes supplemental material}, timestamp = {2014-04-21T15:52:13.000+0200}, title = {Ultracold mixtures of metastable He and Rb: scattering lengths from ab initio calculations and thermalization measurements}, url = {http://arxiv.org/abs/1404.4826}, year = 2014 }