Quantum degenerate two-species Fermi-Fermi mixture coexisting with a Bose-Einstein condensate

Abstract

We report on the generation of a quantum degenerate Fermi-Fermi mixture of two different atomic species. The quantum degenerate mixture is realized employing sympathetic cooling of fermionic Li-6 and K-40 gases by an evaporatively cooled bosonic Rb-87 gas. We describe the combination of trapping and cooling methods that proved crucial to successfully cool the mixture. In particular, we study the last part of the cooling process and show that the efficiency of sympathetic cooling of the Li-6 gas by Rb-87 is increased by the presence of K-40 through catalytic cooling. Due to the differing physical properties of the two components, the quantum degenerate Li-6 K-40 Fermi-Fermi mixture is an excellent candidate for a stable, heteronuclear system allowing to study several so far unexplored types of quantum matter.

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Cited by in corpus (181)

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• BCS-BEC Crossover and Topological Phase Transition in 3D Spin-Orbit Coupled Degenerate Fermi Gases
• Dual-Species Bose-Einstein Condensate of ${}^{87}$Rb and ${}^{133}$Cs
• Time dependent impurity in ultracold fermions: orthogonality catastrophe and beyond
• Ultra-cold Polarized Fermi Gases
• Few-body physics with ultracold atomic and molecular systems in traps
• Ultracold Heteronuclear Fermi-Fermi Molecules
• The Fulde-Ferrell-Larkin-Ovchinnikov state for ultracold fermions in lattice and harmonic potentials: a review
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• Interaction and filling induced quantum phases of dual Mott insulators of bosons and fermions
• Quantum degenerate mixtures of strontium and rubidium atoms
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• Strongly Interacting Isotopic Bose-Fermi Mixture Immersed in a Fermi Sea
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• Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms
• Collisional Stability of 40K Immersed in a Strongly Interacting Fermi Gas of 6Li
• Broad Feshbach resonance in the 6Li-40K mixture
• Magic-zero wavelengths of alkali-metal atoms and their applications
• Atom-dimer scattering and long-lived trimers in fermionic mixtures
• Imbalanced Fermi Gases at Unitarity
• Hydrodynamic Expansion of a Strongly Interacting Fermi-Fermi Mixture
• Association of ultracold double-species bosonic molecules
• Quantum Degenerate Mixture of Ytterbium and Lithium Atoms
• A double species ${}^{23}$Na and ${}^{87}$Rb Bose-Einstein condensate with tunable miscibility via an interspecies Feshbach resonance
• Composite fermionization of 1-D Bose-Bose mixtures
• Observation of a Degenerate Fermi Gas Trapped by a Bose-Einstein Condensate
• Atom-dimer and dimer-dimer scattering in fermionic mixtures near a narrow Feshbach resonance
• Sympathetic cooling in an optically trapped mixture of alkali and spin-singlet atoms
• Heavy-Light Fermion Mixtures at Unitarity
• Production of a degenerate Fermi-Fermi mixture of dysprosium and potassium atoms
• All-optical production of a degenerate mixture of 6Li and 40K and creation of heteronuclear molecules
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• Liberating Efimov physics from three dimensions
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• Recursive formulation of the multiconfigurational time-dependent Hartree method for fermions, bosons and mixtures thereof in terms of one-body density operators
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• Thermodynamics of the two-component Fermi gas with unequal masses at unitarity
• Interaction induced decay of a heteronuclear two-atom system
• Pattern formation in mixtures of ultracold atoms in optical lattices
• Exotic paired states with anisotropic spin-dependent Fermi surfaces
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• Phase diagram, extended domain walls, and soft collective modes in a three component fermionic superfluid
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• Interspecies thermalization in an ultracold mixture of Cs and Yb in an optical trap
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• Binding of heavy fermions by a single light atom in one dimension
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• Anomalous Dimers in Quantum Mixtures near Broad Resonances: Pauli Blocking, Fermi Surface Dynamics and Implications
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• Dimer-atom scattering between two identical fermions and a third particle
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• Ab initio determination of polarizabilities and van der Waals coefficients of Li atoms using the relativistic CCSD(T) method
• A compact experimental machine for studying tunable Bose-Bose superfluid mixtures
• Quartet Superfluid in Two-dimensional Mass-imbalanced Fermi Mixtures
• Shell-Shaped Quantum Droplet in a Three-Component Ultracold Bose Gas
• Stability of the Superfluid State in Three-Component Fermionic Optical Lattice Systems
• Universal tetramer and pentamer in two-dimensional fermionic mixtures
• Investigation of Feshbach Resonances in ultra-cold 40 K spin mixtures
• Cooper pairing and BCS-BEC evolution in mixed-dimensional Fermi gases
• Signatures of non-trivial pairing in the quantum walk of two-component bosons
• Observation of low-field Feshbach resonances between ${}^{161}$Dy and ${}^{40}$K
• Crossover from attractive to repulsive induced interactions and bound states of two distinguishable Bose polarons
• Quantum phases of constrained dipolar bosons in coupled one-dimensional optical lattices
• An Adaptable Dual Species Effusive Source and Zeeman Slower Design Demonstrated with Rb and Li
• Photoionization loss in simultaneous magneto-optical trapping of Rb and Sr
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• Quantum Control of Light through an Atom-Molecule Dark State
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• Emergence of Crystalline Few-body Correlations in Mass-imbalanced Fermi Polarons
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• Application of lasers to ultracold atoms and molecules
• One-dimensional repulsive Hubbard model with mass imbalance: Orders and filling anomaly
• Mott-Hubbard transition in the mass-imbalanced Hubbard model
• Two component quantum walk in one-dimensional lattice with hopping imbalance
• Fast loading of a cold mixture of Sodium and Potassium atoms from compact and versatile cold atomic beam sources
• Atom-dimer scattering amplitude for fermionic mixtures with different masses: s-wave and p-wave contributions
• Realizing Topological Mott Insulators from the RKKY Interaction
• Beyond mean-field study of a binary bosonic mixture in a state-dependent honeycomb lattice
• Quantum Noise in the Collective Abstraction Reaction A+B ${}_2\to$ AB+B
• Thermal transitions, pseudogap behavior and BCS-BEC crossover in Fermi-Fermi mixtures
• p-wave phase shift and scattering length of ${}^6$Li
• Mott transitions in a three-component Falicov-Kimball model: A slave boson mean-field study
• Quantum optomechanics with a mixture of ultracold atoms
• An ultracold, optically trapped mixture of {87}Rb and metastable {4}He atoms
• Effective Hamiltonian for a Half-filled Asymmetric Ionic Hubbard Chain with Alternating On-site Interaction
• Efficient matter-wave lensing of ultracold atomic mixtures
• Competing few-body correlations in ultracold Fermi polarons
• Interaction-induced localization of fermionic mobile impurities in a Larkin-Ovchinnikov superfluid
• Pauli limited d-wave superconductors: Quantum breached pair phase and thermal transitions
• Orbital-selective thermalization plateau in the mass imbalanced Hubbard model
• Magnetic merging of ultracold atomic gases of ${}^{85}$Rb and ${}^{87}$Rb
• Analytical solutions for two heteronuclear atoms in a ring trap
• Complex phases in the doped two-species bosonic Hubbard Model
• Dynamical properties of a few mass-imbalanced ultra-cold fermions confined in a double-well potential
• Mass-Imbalanced Superconductivity in Effective Two-Channel Kondo Lattice
• Analytical solutions of the coupled Gross-Pitaevskii equations for the three-species Bose-Einstein condensates
• Dissipative preparation of a Floquet topological insulator in an optical lattice via bath engineering
• An effective mean field theory for the coexistence of anti-ferromagnetism and superconductivity: Applications to iron-based superconductors and cold Bose-Fermi atomic mixtures
• Confinement-Induced Resonance with Weak Background Interaction
• Superfluid phase transition and strong-coupling effects in an ultracold Fermi gas with mass imbalance
• Competing Orders in a Dipolar Bose-Fermi Mixture on a Square Optical Lattice: Mean-Field Perspective
• Resonant Superfluidity in an Optical Lattice
• Effective approaches to the dynamical properties of two distinguishable Bose polarons
• Damping of the Anderson-Bogolyubov mode by spin and mass imbalance in Fermi mixtures
• Three-body bound states in a harmonic waveguide with cylindrical symmetry
• Coherent bimolecular reactions with quantum-degenerate matter waves
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• Retardation effects in induced atomic dipole-dipole interactions
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• Interplay of mass imbalance and frustration in correlated band insulators
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• Molecular regimes in ultracold Fermi gases
• Enhancing quantum order with fermions by increasing species degeneracy
• Method of numerical simulation of interacting quantum gas kinetics on finite momentum lattice
• Quantum Degenerate Mixtures of Cs and Yb
• High-flux cold lithium-6 and rubidium-87 atoms from compact two-dimensional magneto-optical traps
• Ferromagnetic phase in the polarized two-species bosonic Hubbard Model