Fifty-fold improvement in the number of quantum degenerate fermionic atoms

Abstract

We have produced a quantum degenerate Li-6 Fermi gas with up to 7 x 10^7 atoms, an improvement by a factor of fifty over all previous experiments with degenerate Fermi gases. This was achieved by sympathetic cooling with bosonic Na-23 in the F=2, upper hyperfine ground state. We have also achieved Bose-Einstein condensation of F=2 sodium atoms by direct evaporation.

References in corpus (25)

• Observation of a Strongly-Interacting Degenerate Fermi Gas of Atoms
• A quasi-pure Bose-Einstein condensate immersed in a Fermi sea
• Creation of ultracold molecules from a Fermi gas of atoms
• Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose Gas
• Resonance superfluidity in a quantum degenerate Fermi gas
• The BCS-BEC Crossover in a Gas of Fermi Atoms with a Feshbach Resonance
• Two-species mixture of quantum degenerate Bose and Fermi gases
• High-temperature superfluidity of fermionic atoms in optical lattices
• Fermi-Bose quantum degenerate ^40 K - ^87 Rb mixture with attractive interaction
• Topological vortex formation in a Bose-Einstein condensate
• Tuning p-wave interactions in an ultracold Fermi gas of atoms
• Prospect of creating a composite fermi/bose superfluid
• Measurement of interaction energy near a Feshbach resonance in a 6Li Fermi gas
• Measurement of positive and negative scattering lengths in a Fermi gas of atoms
• Radio-Frequency Spectroscopy of Ultracold Fermions
• All-Optical Production of a Degenerate Fermi Gas
• Trapped Fermi gases
• Suppression and enhancement of impurity scattering in a Bose-Einstein condensate
• Resonant control of elastic collisions in an optically trapped Fermi gas of atoms
• Decay of an ultracold fermionic lithium gas near a Feshbach resonance
• Sodium Bose-Einstein Condensates in the F=2 State in a Large-volume Optical Trap
• Mechanical Stability of a Strongly-Interacting Fermi Gas of Atoms
• Measurement of the Zero Crossing in a Feshbach Resonance of Fermionic 6-Li
• Superfluidity in sympathetic cooling with atomic Bose condensates
• Cooper pair formation in trapped atomic Fermi gases

Cited by in corpus (126)

• Theory of ultracold Fermi gases
• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Observation of Bose-Einstein Condensation of Molecules
• Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
• Weakly bound dimers of fermionic atoms
• Fidelity approach to quantum phase transitions
• Probing many-body states of ultra-cold atoms via noise correlations
• Observation of Phase Separation in a Strongly-Interacting Imbalanced Fermi Gas
• A Quantum Gas Microscope for Fermionic Atoms
• Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
• Observation of Feshbach resonances between two different atomic species
• Atomic Bose-Fermi mixtures in an optical lattice
• Strongly Correlated Quantum Fluids: Ultracold Quantum Gases, Quantum Chromodynamic Plasmas, and Holographic Duality
• Feshbach Resonances in Fermionic Lithium-6
• Slow light in degenerate Fermi gases
• Pairing without Superfluidity: The Ground State of an Imbalanced Fermi Mixture
• Cooling in strongly correlated optical lattices: prospects and challenges
• Tomographic RF Spectroscopy of a Trapped Fermi Gas at Unitarity
• Collective modes of trapped gases at the BEC-BCS crossover
• Itinerant Ferromagnetism in an Ultracold Atom Fermi Gas
• Feshbach spectroscopy and analysis of the interaction potentials of ultracold sodium
• Spectroscopic insensitivity to cold collisions in a two-state mixture of fermions
• Quantum degenerate Bose-Fermi mixture of chemically different atomic species with widely tunable interactions
• Spin Hall Effect in Atoms
• Achieving a BCS transition in an atomic Fermi gas
• Collisional Cooling of Ultracold Molecules
• Formation of Ultracold Fermionic NaLi Feshbach Molecules
• UV light-induced atom desorption for large rubidium and potassium magneto-optical traps
• Strongly Interacting Isotopic Bose-Fermi Mixture Immersed in a Fermi Sea
• Cooling and thermometry of atomic Fermi gases
• Supersolid Bose-Fermi Mixtures in Optical Lattices
• Effective magnetic fields in degenerate atomic gases induced by light beams with orbital angular momenta
• Phase diagram of Bose-Fermi mixtures in one-dimensional optical lattices
• Efficient all-optical production of large ${}^6$Li quantum gases using D${}_1$ gray-molasses cooling
• Novel Phase Between Band and Mott Insulators in Two Dimensions
• Superfluidity of trapped dipolar Fermi gases
• Atomic Fermi-Bose mixtures in inhomogeneous and random lattices: From Fermi glass to quantum spin glass and quantum percolation
• Fermionic bright soliton in a boson-fermion mixture
• BCS - BEC crossover at T=0: A Dynamical Mean Field Theory Approach
• Mean-field description of dynamical collapse of a fermionic condensate in a trapped boson-fermion mixture
• Large atom number Bose-Einstein condensate of sodium
• Mixture of bosonic and spin-polarized fermionic atoms in an optical lattice
• Mass Dependence of Ultracold Three-Body Collision Rates
• Spin Transport in Polaronic and Superfluid Fermi Gases
• Exact results for the 1D interacting mixed Bose-Fermi gas
• Feshbach spectroscopy and scattering properties of ultracold Li+Na mixtures
• Efficient simulation of open quantum systems coupled to a fermionic bath
• Quantum mixtures of ultracold gases of neutral atoms
• Compressibility of an Ultracold Fermi Gas with Repulsive Interactions
• Superfluid Expansion of a Strongly Interacting Fermi Gas
• Large atom number dual-species magneto-optical trap for fermionic 6Li and 40K atoms
• Nondestructive Probing of Means, Variances, and Correlations of Ultracold-Atomic-System Densities via Qubit Impurities
• Multiple species atom source for laser-cooling experiments
• Efficient and robust initialization of a qubit register with fermionic atoms
• Pairing of fermions in atomic traps and nuclei
• Cooling through quantum criticality and many-body effects in condensed matter and cold gases
• Critical Vortex Shedding in a Strongly Interacting Fermionic Superfluid
• Finite temperature effects on the collapse of trapped Bose-Fermi mixtures
• Boson-Fermion pairing in Bose-Fermi mixtures on 1D optical lattices
• Supersolids in one dimensional Bose Fermi mixtures
• Fast production of ultracold sodium gases using light--induced desorption and optical trapping
• Density profile of a harmonically trapped ideal Fermi gas in arbitrary dimension
• Gap solitons in superfluid boson-fermion mixtures
• Generalized Dynamical Mean-Field Theory for Bose-Fermi Mixtures in Optical Lattices
• Direct evaporative cooling of 41K into a Bose-Einstein condensate
• Conversion of ${}^{40}$K-${}^{87}$Rb mixtures into stable molecules
• Mean-field theory of Bose-Fermi mixtures in optical lattices
• Mixing-demixing in a trapped degenerate fermion-fermion mixture
• Monopole Oscillations and Dampings in Boson and Fermion Mixture in the Time-Dependent Gross-Pitaevskii and Vlasov Equations
• Effective magnetic fields induced by EIT in ultra-cold atomic gases
• Mott insulators and correlated superfluids in ultracold Bose-Fermi mixtures
• Phase diagram of a Bose-Fermi mixture in a one-dimensional optical lattice in terms of fidelity and entanglement
• Free expansion of fermionic dark solitons in a boson-fermion mixture
• Collisional oscillations of trapped boson-fermion mixtures approaching collapse
• Exact pairing correlations in one-dimensional trapped fermions with stochastic mean-field wave-functions
• Interplay between the single particle and collective features in the boson fermion model
• Fluctuations of imbalanced fermionic superfluids in two dimensions induce continuous quantum phase transitions and non-Fermi liquid behavior
• Ultracold atomic Fermi-Bose mixtures in bichromatic optical dipole traps: a novel route to study fermion superfluidity
• Bosons and Fermions near Feshbach resonances
• Limits of sympathetic cooling of fermions by zero temperature bosons due to particle losses
• Spin-polarized fermions with $p$-wave interactions
• Mixing-demixing transition and collapse of a vortex state in a quasi-two-dimensional boson-fermion mixture
• Dipole Oscillations in Bose - Fermi Mixture in the Time-Dependent Grosspitaevskii and Vlasov equations
• Absorption and emission of a collective excitation by a fermionic quasiparticle in a Fermi superfluid
• A Model for Overscreened Kondo Effect in Ultracold Fermi Gas
• Optimal cooling strategies for magnetically trapped atomic Fermi-Bose mixtures
• Solid-state laser system for laser cooling of Sodium
• Finite-Temperature Study of Bose-Fermi Superfluid Mixtures
• Collective excitation branch in the continuum of pair-condensed Fermi gases : analytical study and scaling laws
• Narrow-linewidth cooling of ${}^6$Li atoms using the 2S-3P transition
• BCS pairing in a trapped dipolar Fermi gase
• Analogy electromagnetism-acoustics: Validation and application to local impedance active control for sound absorption
• Photoassociation of Ultracold NaLi
• Scissors modes of two-component degenerate gases: Bose-Bose and Bose-Fermi mixtures
• Spin-Polarizing Cold Sodium Atoms in a Strong Magnetic Field
• Kohn's theorem in a superfluid Fermi gas with a Feshbach resonance
• Quadrupole Oscillations in Bose-Fermi Mixtures of Ultracold Atomic Gases made of Yb atoms in the Time-Dependent Gross-Pitaevskii and Vlasov equations
• Thermodynamical approaches to efficient sympathetic cooling in ultracold Fermi-Bose atomic mixtures
• Coupled Breathing Oscillations of Two-Component Fermion Condensates in Deformed Traps
• Diffraction of ultra-cold fermions by quantized light fields: Standing versus traveling waves
• Sympathetic cooling route to Bose-Einstein condensate and Fermi-liquid mixtures
• Landau-Khalatnikov phonon damping in strongly interacting Fermi gases
• Thermodynamics of low-dimensional trapped Fermi gases
• Ground state properties of one-dimensional Bose-Fermi mixtures
• Limits of sympathetic cooling of fermions: The role of the heat capacity of the coolant
• Harmonically trapped jellium
• Collective Modes and Stability of Bose-Fermi Mixtures with a BCS-BEC Crossover
• Weak-coupling to unitarity crossover in Bose-Fermi mixtures: Mixing-demixing and spontaneous symmetry breaking in trapped systems
• Endpoint thermodynamics of an atomic Fermi gas subject to a Feshbach resonance
• Energy, decay rate, and effective masses for a moving polaron in a Fermi sea: Explicit results in the weakly attractive limit
• Signatures of macroscopic quantum coherence in ultracold dilute Fermi gases
• Development of an apparatus for cooling 6Li-87Rb Fermi-Bose mixtures in a light-assisted magnetic trap
• Crossovers in Unitary Fermi Systems
• Breathing Oscillations in Bose - Fermi Mixing Gases with Yb atoms in the Largely Prolate Deformed Traps
• Revisiting the concept of chemical potential in classical and quantum gases: A perspective from Equilibrium Statistical Mechanics
• Dynamics of large samples of repulsive Fermi gases at nonzero temperatures
• On the spin asymmetry of ground states in trapped two-component Fermi gases with repulsive interactions
• Bifurcation and chaos in one dimensional chains of small particles
• Breathing oscillations and quasi-low-dimensional structures of weakly-interacting degenerate Fermi gases in highly-anisotropic traps
• Quantitative Probe of Pairing Correlations in a Cold Fermionic Atom Gas
• Deformation Dependence of Breathing Oscillations in Bose - Fermi Mixtures at Zero Temperature
• Pauli blocking of light scattering in degenerate fermions
• Exact solutions of a one-dimensional mixture of spinor bosons and spinor fermions
• Non-destructively probing the thermodynamics of quantum systems with qumodes
• Competitive algorithms for calculating the ground state properties of Bose-Fermi mixtures
• Quantum optics of ultra-cold molecules