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 ${}^6$Li in the ground state and alkaline-earth-like ${}^{174}$Yb in an excited electronic metastable state (${}^3$P${}_2$, m${}_J$ = -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.

5 pages, 4 figures

References in corpus (5)

• A High Phase-Space-Density Gas of Polar Molecules
• Quantum Gas of Deeply Bound Ground State Molecules
• Production of quantum degenerate mixtures of ytterbium and lithium with controllable inter-species overlap
• Inelastic Collisions in Optically Trapped Ultracold Metastable Ytterbium
• Magnetic control of ultra-cold ${}^6$Li and ${}^{174}$Yb(${}^3{P}_2$) atom mixtures with Feshbach resonances

Cited by in corpus (9)

• New frontiers with quantum gases of polar molecules
• Strongly interacting ultracold polar molecules
• Two-photon photoassociation spectroscopy of the ${}^2{\Sigma }^{+}$ YbLi molecular ground state
• Collisional stability of localized Yb(${}^3{\mathrm{P}}_2$) atoms immersed in a Fermi sea of Li
• Spectroscopic determination of magnetic-field-dependent interactions in an ultracold Yb(3P2)-Li mixture
• Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb(${}^3$P) atoms
• Creation of a degenerate Bose-Bose mixture of erbium and lithium atoms
• Universal Efimov spectra and fermionic doublets in highly mass-imbalanced cold-atom mixtures with van der Waals and dipole interactions
• Feshbach resonances of large mass-imbalance Er-Li mixtures