Polarons in the radio-frequency spectrum of a quasi-two-dimensional Fermi gas

Abstract

We measure radio-frequency spectra for a two-component mixture of a ${}^6$Li atomic Fermi gas in the quasi-two-dimensional regime. Near the Feshbach resonance, where the transverse Fermi energy is large compared to the confinement-induced dimer binding energies for the initial and final states, we find that the observed resonances do not correspond to transitions between confinement-induced dimers. The spectrum appears to be well-described by transitions between noninteracting polaron states in two dimensions.

5 pages, 4 figures and supplementary material 4 pages, 3 figures

References in corpus (9)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms
• Radiofrequency spectroscopy of a strongly interacting two-dimensional Fermi gas
• Evolution of Fermion Pairing from Three to Two Dimensions
• Fermi polarons in two dimensions
• Polaron-molecule transitions in a two-dimensional Fermi gas
• Polarons and Molecules in a Two-Dimensional Fermi Gas
• Clock shift in a strongly interacting two-dimensional Fermi gas

Cited by in corpus (124)

• Bose polarons in the strongly interacting regime
• Ultrafast many-body interferometry of impurities coupled to a Fermi sea
• Strongly Correlated Quantum Fluids: Ultracold Quantum Gases, Quantum Chromodynamic Plasmas, and Holographic Duality
• Quantum dynamics of ultracold Bose polarons
• Universal many-body response of heavy impurities coupled to a Fermi sea
• Two-Dimensional Homogeneous Fermi Gases
• Ground-state pressure of quasi-2D Fermi and Bose gases
• Radio frequency spectroscopy of polarons in ultracold Bose gases
• Quench Dynamics and Orthogonality Catastrophe of Bose Polarons
• Renormalization group approach to the Fröhlich polaron model: application to impurity-BEC problem
• Unconventional superfluid in a two-dimensional Fermi gas with anisotropic spin-orbit coupling and Zeeman fields
• Thermodynamics of an attractive 2D Fermi gas
• Highly polarized Fermi gases in two dimensions
• Quantum fluctuations in the BCS-BEC crossover of two-dimensional Fermi gases
• Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases
• Electron-exciton interactions in the exciton-polaron problem
• Pressure, compressibility, and contact of the two-dimensional attractive Fermi gas
• Observation of quantum-limited spin transport in strongly interacting two-dimensional Fermi gases
• Polaron Interactions and Bipolarons in One-Dimensional Bose Gases in the Strong Coupling Regime
• Quasiparticle lifetime of the repulsive Fermi polaron
• Attractive Fermi polarons at nonzero temperature with finite impurityconcentration
• Repulsive polarons in two-dimensional Fermi gases
• Ionic polaron in a Bose-Einstein condensate
• Pair Correlations in the Two-Dimensional Fermi Gas
• Repulsive Fermi Polarons and Their Induced Interactions in Binary Mixtures of Ultracold Atoms
• Phase separation and pair condensation in a spin-imbalanced 2D Fermi gas
• Dynamics of an impurity in a one-dimensional lattice
• Strong-coupling Bose polarons in 1D: Condensate deformation and modified Bogoliubov phonons
• Physics of ultracold Fermi gases revealed by spectroscopies
• Bound states in a quasi-two-dimensional Fermi gas
• Many-body interferometry of magnetic polaron dynamics
• Non-Hermitian Squeezed Polarons
• Dynamical variational approach to Bose polarons at finite temperatures
• Theory of radio-frequency spectroscopy of impurities in quantum gases
• Quantum anomaly and thermodynamics of one-dimensional fermions with three-body interactions
• Feynman path-integral treatment of the Bose polaron beyond the Fröhlich model
• Three s-wave interacting fermions under anisotropic harmonic confinement: Dimensional crossover of energetics and virial coefficients
• Bloch oscillations of bosonic lattice polarons
• Transport of neutral optical excitations using electric fields
• Molecule and polaron in a highly polarized two-dimensional Fermi gas with spin-orbit coupling
• Heavy polarons in ultracold atomic Fermi superfluids at the BEC-BCS crossover: formalism and applications
• Exact quasiparticle properties of a heavy polaron in BCS Fermi superfluids
• Ab initio lattice results for Fermi polarons in two dimensions
• Fermi-to-Bose crossover in a trapped quasi-2D gas of fermionic atoms
• Rydberg impurity in a Fermi gas: Quantum statistics and rotational blockade
• Correlated quantum dynamics of two quenched fermionic impurities immersed in a Bose-Einstein Condensate
• Superfluid density and critical velocity near the fermionic Berezinskii-Kosterlitz-Thouless transition
• Criteria for 2D kinematics in an interacting Fermi gas
• Fermi Gases in the Two-Dimensional to Quasi-Two-Dimensional Crossover
• Multispecies time-dependent restricted-active-space self-consistent-field theory for ultracold atomic and molecular gases
• Crossover polarons in a strongly interacting Fermi superfluid
• Fulde-Ferrell-Larkin-Ovchinnikov state of two-dimensional imbalanced Fermi gases
• Fermi polarons at finite temperature: Spectral function and rf-spectroscopy
• A long-lived Higgs mode in a two-dimensional confined Fermi gas
• New theoretical approaches to Bose polarons
• Ground state of the two-dimensional attractive Fermi gas: essential properties from few- to many-body
• The p-wave polaron
• Breakdown of scale invariance in a quasi-two-dimensional Bose gas due to the presence of the third dimension
• Three-body problem in a two-dimensional Fermi gas
• Radio frequency spectra of Feshbach molecules in quasi-two dimensional geometries
• Three-body correlations in a two-dimensional SU(3) Fermi gas
• Tunable Polarons in Bose-Einstein Condensates
• High-polarization limit of the quasi-two-dimensional Fermi gas
• Pairing and radio-frequency spectroscopy in two-dimensional Fermi gases
• Correlated dynamics of fermionic impurities induced by the counterflow of an ensemble of fermions
• Radio-frequency response and contact of impurities in a quantum gas
• Thermodynamic signatures of the polaron-molecule transition in a Fermi gas
• Quantum-Zeno Fermi polaron in the strong dissipation limit
• The effect of boson-boson interaction on the Bipolaron formation
• BCS-BEC crossover in a quasi-two-dimensional Fermi gas
• Quasi-two-dimensional Fermi gases at finite temperature
• Hartree-Fock treatment of Fermi polarons using the Lee-Low-Pine transformation
• Radio-frequency spectroscopy of weakly bound molecules in spin-orbit coupled atomic Fermi gases
• Effect of fermion indistinguishability on optical absorption of doped two-dimensional semiconductors
• The strongly driven Fermi polaron
• Virial coefficients of 1D and 2D Fermi gases by stochastic methods and a semiclassical lattice approximation
• Crossover from exciton polarons to trions in doped two-dimensional semiconductors at finite temperature
• Roton-induced Bose polaron in the presence of synthetic spin-orbit coupling
• Fermi-Fermi crossover in the ground state of 1D few-body systems with anomalous three-body interactions
• Precision Many-Body Study of the Berezinskii-Kosterlitz-Thouless Transition and Temperature-Dependent Properties in the Two-Dimensional Fermi Gas
• Momentum-resolved radio-frequency spectroscopy of a spin-orbit coupled atomic Fermi gas near a Feshbach resonance in harmonic traps
• Intersections of ultracold atomic polarons and nuclear clusters: How is a chart of nuclides modified in dilute neutron matter?
• Dimensional crossover in a strongly interacting ultracold atomic Fermi gas
• Effective theory for ultracold strongly interacting fermionic atoms in two dimensions
• Thermodynamics and static response of anomalous 1D fermions via quantum Monte Carlo in the worldline representation
• Multidimensional Spectroscopy of Time-Dependent Impurities in Ultracold Fermions
• Atom Pairing in Optical Superlattices
• Rabi oscillations and magnetization of a mobile spin-1/2 impurity in a Fermi sea
• A Quantum Field-Theoretical Perspective on Scale Anomalies in 1D systems with Three-Body Interactions
• Harmonically trapped fermions in two dimensions: ground-state energy and contact of SU(2) and SU(4) systems via nonuniform lattice Monte Carlo
• Thermally stable p-wave repulsive Fermi polaron without a two-body bound state
• Exact Quantum Virial Expansion for the Optical Response of Doped Two-Dimensional Semiconductors
• Pseudogap regime of a strongly interacting two-dimensional Fermi gas with and without confinement-induced effect range of interactions
• BCS-BEC Crossover in the Two-Dimensional Attractive Hubbard Model: Variational Cluster Approach
• Polaronic Proton and Diproton Clustering in Neutron-Rich Matter
• Raman spectroscopy of Fermi polarons
• Theory of the spectral function of Fermi polarons at finite temperature
• Highly polarized one-dimensional Fermi gases near a narrow $p-$wave resonance
• Stochastic-field approach to the quench dynamics of the one-dimensional Bose polaron
• Exact calculation of spectral properties of a particle interacting with a one-dimensional Fermi gas in optical lattices
• Scattering Hypervolume of Fermions in Two Dimensions
• Fermi spin polaron and dissipative Fermi-polaron Rabi dynamics
• Universal quantum dynamics of Bose polarons
• Significance of dressed molecules in a quasi-two-dimensional polarized Fermi gas
• Mass-gap description of heavy impurities in Fermi gases
• Hartree-Fock-Bogoliubov theory of trapped one-dimensional imbalanced Fermi systems
• Two-dimensional Fermi gas in antiparallel magnetic fields
• Emergent Mott-insulators at non-integer fillings and devil's staircase induced by attractive interaction in many-body polarons
• Two-dimensional spin-imbalanced Fermi gases at non-zero temperature: Phase separation of a non-condensate
• Trapped imbalanced fermionic superfluids in one dimension: A variational approach
• Spectral function of Fermi polarons at finite temperature from a self-consistent many-body $T$-matrix approach in real frequency
• Exact spectral properties of Fermi polarons in one-dimensional lattices: Anomalous Fermi singularities and polaron quasiparticles
• Medium-enhanced polaron repulsion in a dilute Bose mixture
• Super Fermi polaron and Nagaoka ferromagnetism in a two-dimesnional square lattice
• Repulsive Fermi and Bose Polarons in Quantum Gases
• Efficient variational approach to the Fermi polaron problem in two dimensions, both in and out of equilibrium
• Non-universal Fermi polaron in quasi two-dimensional quantum gases
• Magnetic monopole induced polarons in atomic superlattices
• Signatures of the orthogonality catastrophe in a coherently driven impurity
• Repulsive fermions and shell effects on the surface of a sphere
• Bose Polaron in a quantum fluid of light
• Renormalization group approach to the normal phase of 2D Fermi gases
• Small amplitude collective modes of a finite-size unitary Fermi gas in deformed traps
• Properties of a static dipolar impurity in a 2D dipolar BEC