Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas

Abstract

We create weakly-bound Li2 molecules from a degenerate two component Fermi gas by sweeping a magnetic field across a Feshbach resonance. The atom-molecule transfer efficiency can reach 85% and is studied as a function of magnetic field and initial temperature. The bosonic molecules remain trapped for 0.5 s and their temperature is within a factor of 2 from the Bose-Einstein condensation temperature. A thermodynamical model reproduces qualitatively the experimental findings.

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Cited by in corpus (233)

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• Feshbach Resonances in Ultracold Gases
• Theory of ultracold Fermi gases
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• Production of cold molecules via magnetically tunable Feshbach resonances
• Observation of Bose-Einstein Condensation of Molecules
• Experimental Study of the BEC-BCS Crossover Region in Lithium 6
• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• Weakly bound dimers of fermionic atoms
• Repulsively bound atom pairs in an optical lattice
• Dipolar physics: A review of experiments with magnetic quantum gases
• Confinement induced molecules in a 1D Fermi gas
• Pure Gas of Optically Trapped Molecules Created from Fermionic Atoms
• Ultracold heteronuclear molecules in a 3D optical lattice
• Observation of Heteronuclear Feshbach Resonances in a Bose-Fermi Mixture
• Precise determination of ${}^6$Li cold collision parameters by radio-frequency spectroscopy on weakly bound molecules
• Observation of Feshbach resonances between two different atomic species
• Spin 1/2 Fermions in the Unitary Regime: A Superfluid of a New Type
• The BCS-BEC crossover: From ultra-cold Fermi gases to nuclear systems
• Critical Temperature and Thermodynamics of Attractive Fermions at Unitarity
• Universal few-body physics and cluster formation
• Multiplet Structure of Feshbach Resonances in non-zero partial waves
• Strongly Correlated Quantum Fluids: Ultracold Quantum Gases, Quantum Chromodynamic Plasmas, and Holographic Duality
• P-wave Feshbach resonances of ultra-cold ${}^6$Li
• Feshbach Resonances in Fermionic Lithium-6
• Ultra-cold Polarized Fermi Gases
• Photoassociative Production and Trapping of Ultracold KRb Molecules
• BCS-BEC crossover at finite temperature for superfluid trapped Fermi atoms
• General relations for quantum gases in two and three dimensions. Two-component fermions
• Bragg spectroscopy of a strongly interacting Fermi gas
• Formation and interactions of cold and ultracold molecules: new challenges for interdisciplinary physics
• Quantum computations with atoms in optical lattices: marker qubits and molecular interactions
• Quantum Monte Carlo Simulations of the BCS-BEC Crossover at Finite Temperature
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• Observation of Heteronuclear Feshbach Molecules from a ${}^{85}$Rb - ${}^{87}$Rb gas
• Lifetime of molecule-atom mixtures near a Feshbach resonance in 40K
• Principal problems in Bose-Einstein condensation of dilute gases
• Itinerant Ferromagnetism in an Ultracold Atom Fermi Gas
• Production Efficiency of Ultracold Feshbach Molecules in Bosonic and Fermionic Systems
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• Molecular collisions in ultracold atomic gases
• Few-body physics in resonantly interacting ultracold quantum gases
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• Momentum Distribution and Contact of the Unitary Fermi gas
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• Spectroscopy of Ultracold, Trapped Cesium Feshbach Molecules
• The prospects of forming ultracold molecules in ${}^2\Sigma$ states by magnetoassociation of alkali-metal atoms with Yb
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• Measurement of a Mixed Spin Channel Feshbach Resonance in Rubidium 87
• Interactions and dynamics in Li + Li_2 ultracold collisions
• Dynamics of a strongly interacting Fermi gas: the radial quadrupole mode
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• Mass Dependence of Ultracold Three-Body Collision Rates
• Enhancing the Observability of the Efimov Effect in Ultracold Atomic Gas Mixtures
• Self-consistent theory for molecular instabilities in a normal degenerate Fermi gas in the BEC-BCS crossover
• Numerical study of three-body recombination for systems with many bound states
• Spontaneous Dissociation of 85Rb Feshbach Molecules
• Many-body effects on adiabatic passage through Feshbach resonances
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• Formation of molecules near a Feshbach resonance in a 1D optical lattice
• Thermal equilibrium and efficient evaporation of an ultracold atom-molecule mixture
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• Two-body problem in periodic potentials
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• Making Cold Molecules by Time-dependent Feshbach Resonances
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• Universality in nonadiabatic behaviour of classical actions in nonlinear models with separatrix crossings
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• Dimer-dimer collisions at finite energies in two-component Fermi gases
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• Observation of interference between two molecular Bose-Einstein condensates
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• Atom-molecule theory of broad Feshbach resonances
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• Molecular Collisions: from Near-cold to Ultra-cold
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• Feshbach Resonance Management of Bose-Einstein Condensates in Optical Lattices
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• Role of Particle Interactions in the Feshbach Conversion of Fermion Atoms to Bosonic Molecules
• Fault-Tolerant Dissipative Preparation of Atomic Quantum Registers with Fermions
• Deviation from Universality in Collisions of Ultracold ${}^6$Li${}_2$ Molecules
• Lifetime of Feshbach dimers in a Fermi-Fermi mixture of ${}^6$Li and ${}^{40}$K
• Deterministic Entanglement via Molecular Dissociation in Integrated Atom Optics
• Interior gap superfluidity in a two-component Fermi gas of atoms
• Vortex arrays in a rotating superfluid Fermi gas
• Quantum dark solitons in ultracold one-dimensional Bose and Fermi gases
• Bloch oscillations in Fermi gases
• Feshbach-Resonant Interactions in 40K and 6Li Degenerate Fermi Gases
• Maximum Entanglement in Squeezed Boson and Fermion States
• Enhanced association and dissociation of heteronuclear Feshbach molecules in a microgravity environment
• Creation and manipulation of bound states in continuum with lasers: Applications to cold atoms and molecules
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• Scattering of universal fermionic clusters in the resonating group method
• Heating and atom loss during upward ramps of Feshbach resonance levels in Bose-Einstein condensates
• Magnetic Tuning of the Relativistic BCS-BEC Crossover
• Dynamics of Feshbach Molecules in an Ultracold Three-Component Mixture
• Three-dimensional solitons in coupled atomic-molecular Bose-Einstein condensates
• Breathing modes of a fast rotating Fermi gas
• Hydrodynamic Modes in a Trapped Strongly Interacting Fermi Gases of Atoms
• Control of Ultra-cold Inelastic Collisions by Feshbash Resonances and Quasi-One-Dimensional Confinement
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• Molecular Feshbach dissociation as a source for motionally entangled atoms
• Pairing fluctuations in trapped Fermi gases
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• Rosen-Zener model in cold molecule formation
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• Heteronuclear quantum gas mixtures
• On the specific heat of a fermionic atomic cloud in the unitary regime
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• Formation of molecules in an expanding Bose-Einstein condensate
• Strong-coupling limit in cold-molecule formation via photoassociation or Feshbach resonance through Nikitin exponential resonance crossing
• Classification of zero-energy resonances by dissociation of Feshbach molecules
• Cold quantum gases: coherent quantum phenomena from Bose-Einstein condensation to BCS pairing of fermions
• New Directions in Degenerate Dipolar Molecules via Collective Association
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• Emergence of dark soliton signatures in a one-dimensional unpolarized attractive Fermi gas on a ring
• Do phase fluctuations influence the Fulde-Ferrell-Larkin-Ovchinnikov state in a 3D Fermi gas?
• Enhancing molecular conversion efficiency by a magnetic field pulse sequence
• Quantum dynamics of cavity assisted photoassociation of Bose-Einstein condensed atoms
• Experimental realization of BCS-BEC crossover physics with a Fermi gas of atoms
• Feshbach molecule formation through an oscillating magnetic field: subharmonic resonances
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• Phase Coherence in a Driven Double-Well System
• Three-State Feshbach Resonances Mediated By Second-Order Couplings
• Molecular formations in ultracold mixtures of interacting and noninteracting atomic gases
• Bifurcations and bistability in cavity assisted photoassociation of Bose-Einstein condensed molecules
• Spin correlations and entanglement in partially magnetised ensembles of fermions
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• Observation of collectivity enhanced magnetoassociation of ${}^6$Li in the quantum degenerate regime
• Runaway evaporation for optically dressed atoms
• Ultracold Fermion Cooling Cycle using Heteronuclear Feshbach Resonances
• Assessment of interspecies scattering lengths $a_{12}$ from stability of two-component Bose-Einstein condensates
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• Confinement controlled dissociation of a molecular Bose-Einstein condensate
• Quenched Magneto-association of Ultracold Feshbach Molecules
• Transition from Band insulator to Bose-Einstein Condensate superfluid and Mott State of Cold Fermi Gases with Multiband Effects in Optical Lattices
• Effects of nonintegrability on stabilization of Feshbach molecules in atom waveguides
• Unitary Fermi gas in the epsilon expansion
• Ultra-cold fermions in optical lattices
• Bose-representation for a strongly coupled nonequilibrim fermionic superfluid in a time-dependent trap
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• Random walk of a massive quasiparticle in the phonon gas of an ultralow temperature superfluid
• Optimal conversion of Bose condensed atoms into molecules via a Feshbach resonance
• Instability of a trapped ultracold Fermi gas with attractive interactions : quantum effects
• Localized spatially nonlinear matter waves in atomic-molecular Bose-Einstein condensates with space-modulated nonlinearity
• Finite temperature effects in light scattering off Cooper-paired Fermi atoms
• Molecular regimes in ultracold Fermi gases
• Three-body recombination near the d-wave resonance in ultracold ${}^{85}$Rb\,-${}^{87}$Rb mixtures
• Delta-Kick Collimation of Heteronuclear Feshbach Molecules
• Atomic and molecular matter fields in periodic potentials
• Repulsive fermions and shell effects on the surface of a sphere