Collisional stability of localized Yb(${}^3{\mathrm{P}}_2$) atoms immersed in a Fermi sea of Li

Abstract

We establish an experimental method for a detailed investigation of inelastic collisional properties between ytterbium (Yb) in the metastable ${}^3{\mathrm{P}}_2$ state and ground state lithium (Li). By combining an optical lattice and a direct excitation to the ${}^3{\mathrm{P}}_2$ state we achieve high selectivity on the collisional partners. Using this method we determine inelastic loss coefficients in collisions between ${}^{174}$Yb(${}^3{\mathrm{P}}_2$) with magnetic sublevels of $m_J=0$ and $-2$ and ground state ${}^6$Li to be $(4.4\pm 0.3)\times 10^{-11}{\mathrm{cm}}^3/\mathrm{s}$ and $(4.7\pm 0.8)\times 10^{-11}{\mathrm{cm}}^3/\mathrm{s}$, respectively. Absence of spin changing processes in Yb(${}^3{\mathrm{P}}_2$)-Li inelastic collisions at low magnetic fields is confirmed by inelastic loss measurements on the $m_J=0$ state. We also demonstrate that our method allows us to look into loss processes in few-body systems separately.

12 pages, 7 figures

References in corpus (9)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Direct observation of Anderson localization of matter-waves in a controlled disorder
• Bose-Fermi Mixtures in a Three-dimensional Optical Lattice
• Localization of bosonic atoms by fermionic impurities in a 3d optical lattice
• Controlling interactions between highly-magnetic atoms with Feshbach resonances
• Production of quantum degenerate mixtures of ytterbium and lithium with controllable inter-species overlap
• Magnetic field dependent interactions in an ultracold Li-Yb(${}^3$P${}_2$) mixture
• Magnetic control of ultra-cold ${}^6$Li and ${}^{174}$Yb(${}^3{P}_2$) atom mixtures with Feshbach resonances

Cited by in corpus (5)

• Tools for quantum simulation with ultracold atoms in optical lattices
• Spectroscopic determination of magnetic-field-dependent interactions in an ultracold Yb(3P2)-Li mixture
• The dominant scattering channel induced by two-body collision of D-band atoms in triangular optical lattice
• Observation of the $4f^{14}6s^2{}^1{S}_0-4f^{13}5d6s^2(J=2)$ clock transition at 431 nm in ${}^{171}$Yb
• Collisional scattering of strongly interacting D-band Feshbach molecules in optical lattices