Quantum Degenerate Mixture of Ytterbium and Lithium Atoms

Abstract

We have produced a quantum degenerate mixture of fermionic alkali 6Li and bosonic spin-singlet 174Yb gases. This was achieved using sympathetic cooling of lithium atoms by evaporatively cooled ytterbium atoms in a far-off-resonant optical dipole trap. We observe co-existence of Bose condensed (T/T_c~0.8) 174Yb with 2.3*10^4 atoms and Fermi degenerate (T/T_F~0.3) 6Li with 1.2*10^4 atoms. Quasipure Bose-Einstein condensates of up to 3*10^4 174Yb atoms can be produced in single-species experiments. Our results mark a significant step toward studies of few and many-body physics with mixtures of alkali and alkaline-earth-like atoms, and for the production of paramagnetic polar molecules in the quantum regime. Our methods also establish a convenient scheme for producing quantum degenerate ytterbium atoms in a 1064nm optical dipole trap.

4 pages, 3 figures

References in corpus (10)

• A High Phase-Space-Density Gas of Polar Molecules
• Degenerate Fermi Gases of Ytterbium
• Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate
• Quantum degenerate mixtures of alkali and alkaline-earth-like atoms
• All-Optical Formation of Quantum Degenerate Mixtures
• Sympathetic cooling in an optically trapped mixture of alkali and spin-singlet atoms
• Heavy-Light Fermion Mixtures at Unitarity
• Collisional properties of weakly bound heteronuclear dimers
• Spatial separation in a thermal mixture of ultracold ${}^{174}$Yb and ${}^{87}$Rb atoms
• Vortex core states in superfluid Fermi-Fermi mixtures with unequal masses

Cited by in corpus (58)

• Fermi gases in one dimension: From Bethe Ansatz to experiments
• Ultracold Fermi Gases with Emergent SU(N) Symmetry
• Quantum degenerate Bose-Fermi mixture of chemically different atomic species with widely tunable interactions
• Quantum degenerate mixtures of strontium and rubidium atoms
• Creation of ultracold Sr2 molecules in the electronic ground state
• Cooling and thermometry of atomic Fermi gases
• Production of quantum degenerate strontium gases: Larger, better, faster, colder
• Strongly interacting ultracold polar molecules
• Observation of Feshbach resonances between alkali and closed-shell atoms
• Optical Production of Stable Ultracold ${}^{88}$Sr${}_2$ Molecules
• The prospects of forming ultracold molecules in ${}^2\Sigma$ states by magnetoassociation of alkali-metal atoms with Yb
• Production of a degenerate Fermi-Fermi mixture of dysprosium and potassium atoms
• Scattering lengths in isotopologues of the RbYb system
• Controlling interactions between highly-magnetic atoms with Feshbach resonances
• Creation of Quantum-Degenerate Gases of Ytterbium in a Compact 2D-/3D-MOT Setup
• Production of quantum degenerate mixtures of ytterbium and lithium with controllable inter-species overlap
• Degenerate Bose-Fermi mixtures of rubidium and ytterbium
• Ytterbium in quantum gases and atomic clocks: van der Waals interactions and blackbody shifts
• Resonant Control of Interaction Between Different Electronic States
• Optimized sympathetic cooling of atomic mixtures via fast adiabatic strategies
• Quantum dark soliton (qubits) in Bose Einstein condensates
• Feshbach resonances in $p$-wave three-body recombination within Fermi-Fermi mixtures of open-shell ${}^6$Li and closed-shell ${}^{173}$Yb atoms
• Dipole Polarizability of Alkali-Metal (Na, K, Rb) - Alkaline-Earth-Metal (Ca,Sr) Polar molecules - Prospects of Alignment
• Ultracold chemistry with alkali-metal-rare-earth molecules
• Ground and excited state properties of the polar and paramagnetic RbSr molecule: a comparative study
• Crossover trimers connecting continuous and discrete scaling regimes
• Photoassociative production of ultracold heteronuclear YbLi* molecules
• Overlapping Bose-Einstein Condensates of ${}^{23}$Na and ${}^{133}$Cs
• Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap
• On the Efimov Effect in Higher Partial Waves
• Magnetically tunable Feshbach resonances in Li + Yb(${}^3{P}_J$)
• Magnetic Feshbach resonances in ultracold collisions between Cs and Yb atoms
• Hyperfine constants and line separations for the ${}^1{S}_0-{}^3{P}_1$ intercombination line in neutral ytterbium with sub-Doppler resolution
• Crossed-Beam slowing to enhance narrow-line Ytterbium Magneto-Optic Traps
• Active Stabilization of a Diode Laser Injection Lock
• Double Degenerate Bose-Fermi Mixture of Strontium and Lithium
• Realization of a quantum degenerate mixture of highly magnetic and nonmagnetic atoms
• Relativistic many-body calculations of van der Waals coefficients for Yb-Li and Yb-Rb dimers
• Ultracold mixtures of metastable He and Rb: scattering lengths from ab initio calculations and thermalization measurements
• Spontaneous generation of phononic entanglement in quantum dark-soliton qubits
• Exotic Superconductivity Through Bosons in a Dynamical Cluster Approximation
• Dynamics of Feshbach Molecules in an Ultracold Three-Component Mixture
• Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
• Probing the Efimov discrete scaling in atom-molecule collision
• Inverted crossover resonance aiding laser cooling of ${}^{171}$Yb
• Sub-Doppler cooling of ytterbium with the ${}^1{S}_0$-${}^1{P}_1$ transition including ${}^{171}$Yb (I=1/2)
• An ultracold, optically trapped mixture of {87}Rb and metastable {4}He atoms
• Feshbach resonances and molecule formation in ultracold mixtures of Rb and Yb(${}^3$P) atoms
• An inverted crossover resonance within one Zeeman manifold
• Slow sound in matter-wave dark soliton gases
• Spin dependent inelastic collisions between metastable state two-electron atoms and ground state alkali-atoms
• Creation of a degenerate Bose-Bose mixture of erbium and lithium atoms
• An experimental platform for studying the heteronuclear Efimov effect with an ultracold mixture of ${}^6$Li and ${}^{133}$Cs atoms
• Correlations and synchronization in a Bose-Fermi mixture
• Observation of Many-body Dynamical Delocalization in a Kicked Ultracold Gas
• Magnetic Feshbach resonances between atoms in ${}^2$S and ${}^3$P${}_0$ states: mechanisms and dependence on atomic properties
• Continuous loading of an atom beam into an optical lattice
• Feshbach resonances of large mass-imbalance Er-Li mixtures