Magnetic field dependent interactions in an ultracold Li-Yb($^3$P$_2$) mixture
Abstract
Magnetic Feshbach resonances have allowed great success in the production of ultracold diatomic molecules from bi-alkali mixtures, but have so far eluded observation in mixtures of alkali and alkaline-earth-like atoms. Inelastic collisional properties of ultracold atomic systems exhibit resonant behavior in the vicinity of such resonances, providing a detection signature. We study magnetic field dependent inelastic effects via atom loss spectroscopy in an ultracold heteronuclear mixture of alkali Li in the ground state and alkaline-earth-like Yb in an excited electronic metastable state (P, m = -1). We observe a variation of the interspecies inelastic two-body rate coefficient by nearly one order of magnitude over a 100-520G magnetic field range. By comparing to ab-initio calculations we link our observations to interspecies Feshbach resonances arising from anisotropic interactions in this novel collisional system.
Keywords
Cite
@article{arxiv.1412.5690,
title = {Magnetic field dependent interactions in an ultracold Li-Yb($^3$P$_2$) mixture},
author = {William Dowd and Richard J. Roy and Rajendra K. Shrestha and Alexander Petrov and Constantinos Makrides and Svetlana Kotochigova and Subhadeep Gupta},
journal= {arXiv preprint arXiv:1412.5690},
year = {2015}
}
Comments
5 pages, 4 figures