Precise determination of ${}^6$Li cold collision parameters by radio-frequency spectroscopy on weakly bound molecules

Abstract

We employ radio-frequency spectroscopy on weakly bound ${}^6$Li${}_2$ molecules to precisely determine the molecular binding energies and the energy splittings between molecular states for different magnetic fields. These measurements allow us to extract the interaction parameters of ultracold ${}^6$Li atoms based on a multi-channel quantum scattering model. We determine the singlet and triplet scattering lengths to be $a_s=45.167(8)a_0$ and $a_t=-2140(18)a_0$ (1 $a_0$ = 0.0529177 nm), and the positions of the broad Feshbach resonances in the energetically lowest three $s-$wave scattering channels to be 83.41(15) mT, 69.04(5) mT, and 81.12(10) mT.

References in corpus (23)

• Observation of resonance condensation of fermionic atom pairs
• Condensation of Pairs of Fermionic Atoms Near a Feshbach Resonance
• Observation of Bose-Einstein Condensation of Molecules
• Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
• Experimental Study of the BEC-BCS Crossover Region in Lithium 6
• Creation of ultracold molecules from a Fermi gas of atoms
• Evidence for Superfluidity in a Resonantly Interacting Fermi Gas
• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• Weakly bound dimers of fermionic atoms
• Collective excitations of a degenerate gas at the BEC-BCS crossover
• Universal Thermodynamics of Degenerate Quantum Gases in the Unitarity Limit
• Production of Long-Lived Ultracold Li2 Molecules from a Fermi gas
• Measurement of interaction energy near a Feshbach resonance in a 6Li Fermi gas
• Pure Gas of Optically Trapped Molecules Created from Fermionic Atoms
• Fermi systems with long scattering lengths
• Variational calculations of dispersion coefficients for interactions between H, He, and Li atoms
• Radio-Frequency Spectroscopy of Ultracold Fermions
• Decay of an ultracold fermionic lithium gas near a Feshbach resonance
• Elastic and inelastic collisions of 6Li in magnetic and optical traps
• Measurement of the Zero Crossing in a Feshbach Resonance of Fermionic 6-Li
• Radio-Frequency Transitions on Weakly-Bound Ultracold Molecules
• Magnetic field control of elastic scattering in a cold gas of fermionic lithium atoms
• Spontaneous dissociation of long-range Feshbach molecules

Cited by in corpus (204)

• Feshbach Resonances in Ultracold Gases
• Production of cold molecules via magnetically tunable Feshbach resonances
• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Pairing and Phase Separation in a Polarized Fermi Gas
• Revealing the Superfluid Lambda Transition in the Universal Thermodynamics of a Unitary Fermi Gas
• Fermi gases in one dimension: From Bethe Ansatz to experiments
• Fermi-Hubbard physics with atoms in an optical lattice
• Spin-Imbalance in a One-Dimensional Fermi Gas
• Molecular Probe of Pairing in the BEC-BCS Crossover
• Evidence for Superfluidity of Ultracold Fermions in an Optical Lattice
• Collisional stability of a three-component degenerate Fermi gas
• Universal Quantum Viscosity in a Unitary Fermi Gas
• Fermionization of two distinguishable fermions
• Three-body recombination in a three-state Fermi gas with widely tunable interactions
• Deformation of a Trapped Fermi Gas with Unequal Spin Populations
• Precise characterization of ^6Li Feshbach resonances using trap-sideband resolved RF spectroscopy of weakly bound molecules
• Precision Measurements of Collective Oscillations in the BEC-BCS Crossover
• Color Superfluidity and "Baryon" Formation in Ultracold Fermions
• Feynman diagrams versus Fermi-gas Feynman emulator
• Imbalanced Feshbach-resonant Fermi gases
• Fidelity susceptibility, scaling, and universality in quantum critical phenomena
• BEC-BCS crossover, phase transitions and phase separation in polarized resonantly-paired superfluids
• Observation of a two-dimensional Fermi gas of atoms
• Evolution of Fermion Pairing from Three to Two Dimensions
• Determination of the Superfluid Gap in Atomic Fermi Gases by Quasiparticle Spectroscopy
• Evidence for Ground- and Excited-State Efimov Trimers in a Three-State Fermi Gas
• Number of closed-channel molecules in the BEC-BCS crossover
• Radio Frequency Association of Efimov Trimers
• Virial Theorem and Universality in a Unitary Fermi Gas
• Excitation spectra and rf-response near the polaron-to-molecule transition from the functional renormalization group
• Critical velocity for superfluid flow across the BEC-BCS crossover
• Polarons in the radio-frequency spectrum of a quasi-two-dimensional Fermi gas
• Measurement of the Entropy and Critical Temperature of a Strongly Interacting Fermi Gas
• Observation of Feshbach-like resonances in collisions between ultracold molecules
• Efimov Resonances in Ultracold Quantum Gases
• Determination of the Fermion Pair Size in a Resonantly Interacting Superfluid
• Theory of RF-spectroscopy of strongly interacting Fermions
• Thermodynamic Measurements in a Strongly Interacting Fermi Gas
• Radio frequency spectroscopy of polarons in ultracold Bose gases
• Measurement of an Efimov trimer binding energy in a three-component mixture of 6Li
• Superfluidity and magnetism in multicomponent ultracold fermions
• Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
• Virial expansion for a strongly correlated Fermi system and its application to ultracold atomic Fermi gases
• Fulde-Ferrell-Larkin-Ovchinnikov states in one-dimensional spin-polarized ultracold atomic Fermi gases
• Observation of Anomalous Spin Segregation in a Trapped Fermi Gas
• Formation Time of a Fermion Pair Condensate
• Realization of a strongly interacting Bose-Fermi mixture from a two-component Fermi gas
• Observation of shock waves in a strongly interacting Fermi gas
• Determination of atomic scattering lengths from measurements of molecular binding energies near Feshbach resonances
• Atom-Dimer Scattering in a Three-Component Fermi Gas
• Observation of interspecies Li-Cs Feshbach resonances
• A Universal Trimer in a Three-Component Fermi Gas
• Coherence and clock shifts in ultracold Fermi gases with resonant interactions
• Collective oscillations of a Fermi gas in the unitarity limit: Temperature effects and the role of pair correlations
• Condensate Fraction of a Fermi Gas in the BCS-BEC Crossover
• Quantized Superfluid Vortex Rings in the Unitary Fermi Gas
• Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases
• Potassium ground state scattering parameters and Born-Oppenheimer potentials from molecular spectroscopy
• Trionic phase of ultracold fermions in an optical lattice: A variational study
• Spectroscopy of Ultracold, Trapped Cesium Feshbach Molecules
• Photodissociation of ultracold diatomic strontium molecules with quantum state control
• Realization of a Resonant Fermi Gas with a Large Effective Range
• Site-resolved imaging of ultracold fermions in a triangular-lattice quantum gas microscope
• Thermodynamics of a Trapped Unitary Fermi Gas
• Shear viscosity of a universal Fermi gas near the superfluid phase transition
• Effective-Range Dependence of Resonantly Interacting Fermions
• Enhanced paraconductivity-like fluctuations in the radio frequency spectra of ultracold Fermi atoms
• Dynamics of a strongly interacting Fermi gas: the radial quadrupole mode
• Is a gas of strongly interacting atomic fermions a nearly perfect fluid?
• Determination of the Equation of State of a Two-Component Fermi Gas at Unitarity
• Enhancement of variation of fundamental constants in ultracold atom and molecule systems near Feshbach resonances
• Spin 3/2 fermions with attractive interactions in a one-dimensional optical lattice: phase diagrams, entanglement entropy, and the effect of the trap
• Observation of conformal symmetry breaking and scale invariance in expanding Fermi gases
• Cruising through molecular bound state manifolds with radio frequency
• A self-consistent theory of atomic Fermi gases with a Feshbach resonance at the superfluid transition
• Anomalous minimum in the shear viscosity of a Fermi gas
• Dynamic spin response of a strongly interacting Fermi gas
• Radio frequency spectroscopy and the pairing gap in trapped Fermi gases
• Three-body Recombination of Lithium-6 Atoms with Large Negative Scattering Lengths
• Contrasting the wide Feshbach resonances in ${}^6$Li and ${}^7$Li
• Critical Temperature and Condensate Fraction of a Fermion Pair Condensate
• Spin-correlation functions in ultracold paired atomic-fermion systems: sum rules, self-consistent approximations, and mean fields
• Universality in Phase Transitions for Ultracold Fermionic Atoms
• Non-relativistic ab initio calculations for $2^{2}S$, $2^{2}P$ and $3^{2}D$ lithium isotopes: Applications to polarizabilities and dispersion interactions
• Luther-Emery Phase and Atomic-Density Waves in a Trapped Fermion Gas
• Competition between final-state and pairing-gap effects in the radio-frequency spectra of ultracold Fermi atoms
• Ultracold three-body collisions near overlapping Feshbach resonances
• Functional renormalization for trion formation in ultracold fermion gases
• Observation of a quenched moment of inertia in a rotating strongly interacting Fermi gas
• Multi-channel scattering and Feshbach resonances: Effective theory, phenomenology, and many-body effects
• Magnetic Phase Transitions in One-dimensional Strongly Attractive Three-Component Ultracold Fermions
• Density distribution of a trapped two-dimensional strongly interacting Fermi gas
• Expansion of a Fermi Cloud in the BCS-BEC Crossover
• Optical control of Feshbach resonances in Fermi gases using molecular dark states
• Searching for Perfect Fluids: Quantum Viscosity in a Universal Fermi Gas
• Physics of ultracold Fermi gases revealed by spectroscopies
• Production of three-body Efimov molecules in an optical lattice
• Two-field optical methods to control magnetic Feshbach resonances
• Analytic description of atomic interaction at ultracold temperatures II: Scattering around a magnetic Feshbach resonance
• Green's Functions and the Adiabatic Hyperspherical Method
• Superfluidity in Three-species Mixture of Fermi Gases across Feshbach Resonances
• A two-channel R-matrix analysis of magnetic field induced Feshbach resonances
• Observation of Chemical Reactions between a Trapped Ion and Ultracold Feshbach Dimers
• Designer Spatial Control of Interactions in Ultracold Gases
• The Unitary Gas and its Symmetry Properties
• Collective Excitations of Strongly Interacting Fermi Gases of Atoms in a Harmonic Trap
• Multi-component strongly attractive Fermi gas: a color superconductor in a one-dimensional harmonic trap
• Final-state effects in the radio frequency spectrum of strongly interacting fermions
• Efimov Physics in 6Li Atoms
• Inelastic Collisions of a Fermi Gas in the BEC-BCS Crossover
• Optical Control of the Scattering Length and Effective Range for Magnetically Tunable Feshbach Resonances in Ultracold Gases
• Universality of weakly bound dimers and Efimov trimers close to Li-Cs Feshbach resonances
• Superfluid phases of the three-species fermion gas
• Three-body loss in lithium from functional renormalization
• Efimov physics from a renormalization group perspective
• Observation of interference between two molecular Bose-Einstein condensates
• Phases of Attractive Fermi Gases in Synthetic Dimensions
• The ${}^1$S${}_0$ pairing gap in neutron matter
• Detecting the breached pair phase in a polarized ultracold Fermi gas
• Phase diagram, extended domain walls, and soft collective modes in a three component fermionic superfluid
• Fermi Gases in the Two-Dimensional to Quasi-Two-Dimensional Crossover
• Population of closed-channel molecules in trapped Fermi gases with broad Feshbach resonances
• Anharmonicity Induced Resonances for Ultracold Atoms and their Detection
• Methods for Preparing Quantum Gases of Lithium
• Molecular Bose-Einstein condensation in a versatile low power crossed dipole trap
• New theoretical approaches to Bose polarons
• The three-body parameter for Efimov states in lithium-6
• Conditions of Low Dimensionality for Strongly Interacting Atoms Under a Transverse Trap
• The ground state of a mixture of two species of fermionic atoms in 1D optical lattice
• Three-fermion problems in optical lattices
• Exact eigenstates of extended SU($N$) Hubbard models: Generalizations of $\eta$-pairing states with $N$-particle off-diagonal long-range order
• Simple Mean-Field Theory for a Zero-Temperature Fermi Gas at a Feshbach Resonance
• Rigorous results on the ground state of the attractive SU($N$) Hubbard model
• Controlling the nature of a charged impurity in a bath of Feshbach dimers
• Three-body correlations in a two-dimensional SU(3) Fermi gas
• Efimov states embedded in the three-body continuum
• Unified description of pairing, trionic and quarteting states for one-dimensional SU(4) attractive fermions
• S-Wave Collisional Frequency Shift of a Fermion Clock
• Collective oscillations of a Fermi gas near a Feshbach resonance
• First-order symmetry-adapted perturbation theory for multiplet splittings
• Temperature and final state effects in radio frequency spectroscopy experiments on atomic Fermi gases
• BCS-BEC crossover in a trapped Fermi super-fluid using a density-functional equation
• Pairing-gap, pseudo-gap, and no-gap phases in the radio-frequency spectra of a trapped unitary 6Li gas
• Pairing and radio-frequency spectroscopy in two-dimensional Fermi gases
• Ultracold LiCr: a new pathway to quantum gases of paramagnetic polar molecules
• Crystallization of trions in SU(3) cold atom gases trapped in optical lattices
• Full counting statistics of heteronuclear molecules from Feshbach-assisted photo association
• Improved characterization of Feshbach resonances and interaction potentials between ${}^{23}$Na and ${}^{87}$Rb atoms
• Exact eigenstates of multicomponent Hubbard models: SU($N$) magnetic $\eta$ pairing, weak ergodicity breaking, and partial integrability
• Shifts and widths of Feshbach resonances in atomic waveguides
• Properties of quasi-one-dimensional molecules with Feshbach resonance interaction
• Pair fraction in a finite temperature Fermi gas on the BEC side of the BCS-BEC crossover
• Spin-Energy Correlation in Degenerate Weakly-Interacting Fermi Gases
• Color-charge separation in trapped SU(3) fermionic atoms
• Composite-boson approach to molecular Bose-Einstein condensates in mixtures of ultracold Fermi gases
• Phonon contribution to the shear viscosity of a superfluid Fermi gas in the unitarity limit
• Trion states and quantum criticality of attractive SU(3) Dirac fermions
• Topological flat bands in optical checkerboard-like lattices
• Three component fermion pairing in two dimensions
• Phase Diagrams of Three-Component Attractive Ultracold Fermions in One-Dimension
• Efimov physics from the functional renormalization group
• Atom Pairing in Optical Superlattices
• A new many-body wave function for BCS-BEC crossover in Fermi gases
• Quantum Simulators at Negative Absolute Temperatures
• Momentum-resolved Raman spectroscopy of bound molecules in ultracold Fermi gas
• Synthetic-gauge-field-induced resonances and Fulde-Ferrell-Larkin-Ovchinnikov states in a one-dimensional optical lattice
• Photoassociative Spectroscopy of a Halo Molecule in ${}^{86}$Sr
• Tuning a magnetic Feshbach resonance with spatially modulated laser light
• Lifetime of angular momentum in a rotating strongly interacting Fermi gas
• Finite-range effects in dilute Fermi gases at unitarity
• Condensation Energy of a Spin-1/2 Strongly Interacting Fermi Gas
• Temporal Talbot interferometer of strongly interacting molecular Bose-Einstein condensate
• Collective Modes and Stability of Bose-Fermi Mixtures with a BCS-BEC Crossover
• Coexistence of pairing gaps in three-component Fermi gases
• Detecting Entrainment in Fermi-Bose Mixtures
• Cluster formation in two-component Fermi gases
• Trionic and quartetting phases in one-dimensional multicomponent ultracold fermions
• Matter-wave interferometers with trapped strongly interacting Feshbach molecules
• Diffraction of strongly interacting molecular Bose-Einstein condensate from standing wave light pulses
• Long-lived trimers in a quasi-two-dimensional Fermi system
• Experimental realization of BCS-BEC crossover physics with a Fermi gas of atoms
• Global superfluid phase diagram of three component fermions with magnetic ordering
• Significance of dressed molecules in a quasi-two-dimensional polarized Fermi gas
• Scattering halos in strongly interacting Feshbach molecular Bose-Einstein condensates
• Magnetic Field Dependence and Efimov Resonance Broadening in Ultracold Three-Body Recombination
• Resonant scattering effect in spectroscopies of interacting atomic gases
• Quasiparticles, coherence and nonlinearity: exact simulations of RF-spectroscopy of strongly interacting one-dimensional Fermi gases
• Interaction-Induced Dimensional Crossover through Full 3D to 1D
• Dark state transport between unitary Fermi superfluids
• The Symmetry Principle in Condensed Matter Physics (I)
• Mean-field stationary state of a Bose gas at a Feshbach resonance
• Cornwall-Jackiw-Tomboulis effective field theory to nonuniversal equation of state of an ultracold Bose gas
• Pair condensation of polarized fermions in the BCS-BEC crossover
• Non-universal Fermi polaron in quasi two-dimensional quantum gases
• Edge-Edge Correlations without Edge-States: $\eta$-clustering State as Ground State of the Extended Attractive SU(3) Hubbard Chain
• Collisional scattering of strongly interacting D-band Feshbach molecules in optical lattices
• Preparing the Gutzwiller wave function for attractive SU(3) fermions on a quantum computer
• Density profiles and density oscillations of an interacting three-component normal Fermi gas
• Pairing and molecule formation along the BEC-BCS crossover for finite range potentials
• Observable Resonances in Efimov-unfavored Systems
• Enhanced trapping of colding lithium by using the multiple-sideband cooling in a two-dimensional magneto-optical trap
• Characterization of Feshbach resonances in ${}^6\mathrm{Li}{-}^7\mathrm{Li}$ using improved interaction potentials
• Low-energy atomic scattering: s-wave relation between the interaction potential and the phase shift
• Radio-frequency driving of an attractive Fermi gas in a one-dimensional optical lattice