Three-body recombination in a three-state Fermi gas with widely tunable interactions

Abstract

We investigate the stability of a three spin state mixture of ultracold fermionic ${}^6$Li atoms over a range of magnetic fields encompassing three Feshbach resonances. For most field values, we attribute decay of the atomic population to three-body processes involving one atom from each spin state and find that the three-body loss coefficient varies by over four orders of magnitude. We observe high stability when at least two of the three scattering lengths are small, rapid loss near the Feshbach resonances, and two unexpected resonant loss features. At our highest fields, where all pairwise scattering lengths are approaching $a_t=-2140a_0$, we measure a three-body loss coefficient $L_3\simeq 5\times 10^{-22}{\mathrm{cm}}^6/\mathrm{s}$ and a trend toward lower decay rates for higher fields indicating that future studies of color superfluidity and trion formation in a SU(3) symmetric Fermi gas may be feasible.

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Cited by in corpus (56)

• Observation of an Efimov spectrum in an atomic system
• Ultracold Fermi Gases with Emergent SU(N) Symmetry
• Observation of universality in ultracold 7Li three-body recombination
• Observation of heteronuclear atomic Efimov resonances
• Observation of Efimov Resonances in a Mixture with Extreme Mass Imbalance
• Radio Frequency Association of Efimov Trimers
• Comparing and contrasting nuclei and cold atomic gases
• Feshbach resonances, weakly bound molecular states and coupled-channel potentials for cesium at high magnetic fields
• Atom-Dimer Scattering in a Three-Component Fermi Gas
• Universal three-body parameter in heteronuclear atomic systems
• Microscopic Origin and Universality Classes of the Efimov Three-Body Parameter
• Ultracold atoms and the Functional Renormalization Group
• Study of Efimov physics in two nuclear-spin sublevels of 7Li
• All-optical production of a degenerate mixture of 6Li and 40K and creation of heteronuclear molecules
• Polaronic atom-trimer continuity in three-component Fermi gases
• Population imbalance and pairing in the BCS-BEC crossover of three-component ultracold fermions
• Three-Component Fermi Gas in a one-dimensional Optical Lattice
• The Efimov effect for three interacting bosonic dipoles
• Critical Temperature for $\alpha$-Particle Condensation within a Momentum Projected Mean Field Approach
• New type of crossover physics in three-component Fermi gases
• Creation and manipulation of Feshbach resonances with radio-frequency radiation
• Magnetism and domain formation in SU(3)-symmetric multi-species Fermi mixtures
• The Efimov effect in lithium 6
• Confinement-induced Efimov resonances in Fermi-Fermi mixtures
• Pauli blocking effects and Cooper triples in three-component Fermi gases
• Resonant atom-dimer collisions in cesium: Testing universality at positive scattering lengths
• Universal three-body parameter in ultracold 4He*
• Three-body loss in lithium from functional renormalization
• Three-Component Fermionic Atoms with Repulsive Interaction in Optical Lattices
• Looking for "avalanche-mechanism" loss at an atom-molecule Efimov resonance
• Efimov physics from a renormalization group perspective
• Three-body recombination of two-component cold atomic gases into deep dimers in an optical model
• Superfluid state of repulsively interacting three-component fermionic atoms in optical lattices
• Weakly bound states of two- and three-boson systems in the crossover from two to three dimension
• The three-body parameter for Efimov states in lithium-6
• Onset of the Limit Cycle and Universal Three-Body Parameter in Efimov Physics
• Ground state phase diagram of the repulsive SU(3) Hubbard model in Gutzwiller approximation
• Unified description of pairing, trionic and quarteting states for one-dimensional SU(4) attractive fermions
• Exact diagonalization study of the trionic crossover and the trion liquid in the attractive three-component Hubbard model
• Pairing-gap, pseudo-gap, and no-gap phases in the radio-frequency spectra of a trapped unitary 6Li gas
• Trion and Dimer Formation of Three-Color Fermions
• Resonant Atom-Dimer Relaxation in Ultracold Atoms
• Spontaneously symmetry breaking states in the attractive SU$(N)$ Hubbard model
• Superfluid state in the periodic Anderson model with attractive interactions
• Analytical thermodynamics of a strongly attractive three-component Fermi gas in one dimension
• Finite-temperature effects on a triatomic Efimov resonance in ultracold cesium
• Condensate formation with three-component ultracold fermions
• Van der Waals universality in homonuclear atom-dimer elastic collisions
• Color Superfluid and Trionic State of Attractive Three-Component Lattice Fermionic Atoms at Finite Temperatures
• Magnetic phases of spin-3/2 fermions on a spatially anisotropic square lattice
• Efimov Physics in Atom-Dimer Scattering of Lithium-6 Atoms
• Exotic pairing in 1D spin-3/2 atomic gases with $SO(4)$ symmetry
• Spin-asymmetric Josephson plasma oscillations
• Efimov states in Li-Cs mixtures within a minimal model
• Thermodynamic properties of two-component fermionic atoms trapped in a two-dimensional optical lattice
• Three-body losses of repulsively interacting three-component fermionic atoms in optical lattices