Radiofrequency spectroscopy of a strongly interacting two-dimensional Fermi gas

Abstract

We realize and study a strongly interacting two-component atomic Fermi gas confined to two dimensions in an optical lattice. Using radio-frequency spectroscopy we measure the interaction energy of the strongly interacting gas. We observe the confinement-induced Feshbach resonance and find the existence of confinement-induced molecules in very good agreement with theoretical predictions.

4 pages, 4 figures

References in corpus (13)

• Many-Body Physics with Ultracold Gases
• Observation of the Pairing Gap in a Strongly Interacting Fermi Gas
• Using photoemission spectroscopy to probe a strongly interacting Fermi gas
• Pure Gas of Optically Trapped Molecules Created from Fermionic Atoms
• Ultracold heteronuclear molecules in a 3D optical lattice
• Observation of a two-dimensional Fermi gas of atoms
• Tomographic RF Spectroscopy of a Trapped Fermi Gas at Unitarity
• Radio-Frequency Transitions on Weakly-Bound Ultracold Molecules
• Coherence and clock shifts in ultracold Fermi gases with resonant interactions
• Polarons and Molecules in a Two-Dimensional Fermi Gas
• Decoherence and Collisional Frequency Shifts of Trapped Bosons and Fermions
• Effective-range description of a Bose gas under strong one- or two-dimensional confinement
• Berezinskii-Kosterlitz-Thouless transition in trapped quasi-two-dimensional Fermi gas near a Feshbach resonance

Cited by in corpus (69)

• Attractive and repulsive Fermi polarons in two dimensions
• Dynamical Correlations after a Quantum Quench
• Observation of pair condensation in the quasi-2D BEC-BCS crossover
• Crossover from 2D to 3D in a weakly interacting Fermi gas
• Unconventional superfluid in a two-dimensional Fermi gas with anisotropic spin-orbit coupling and Zeeman fields
• Cooling and thermometry of atomic Fermi gases
• Polaron-molecule transitions in a two-dimensional Fermi gas
• Highly polarized Fermi gases in two dimensions
• Polaronic atom-trimer continuity in three-component Fermi gases
• Polaronic properties of an impurity in a Bose-Einstein condensate in reduced dimensions
• Universal impurity-induced bound state in topological superfluids
• A two-dimensional Fermi liquid with attractive interactions
• Dynamical topological phases in quenched spin-orbit coupled degenerate Fermi gas
• Bound states in a quasi-two-dimensional Fermi gas
• Effects of spin-orbit coupling on the Berezinskii-Kosterlitz-Thouless transition and the vortex-antivortex structure in two-dimensional Fermi gases
• Breathing mode of two-dimensional atomic Fermi gases in harmonic traps
• Relaxation dynamics of a Fermi gas in an optical superlattice
• Anomalous conductances in an ultracold quantum wire
• Shear viscosity and spin diffusion in a two-dimensional Fermi gas
• Molecule and polaron in a highly polarized two-dimensional Fermi gas with spin-orbit coupling
• Mass-imbalanced Three-Body Systems in Two Dimensions
• Visualizing the BEC-BCS crossover in the two-dimensional Fermi gas: pairing gaps and dynamical response functions from ab initio computations
• Three-body problem in a two-dimensional Fermi gas
• Radio frequency spectra of Feshbach molecules in quasi-two dimensional geometries
• Two-dimensional short-range interacting attractive and repulsive Fermi gases at zero temperature
• Dynamical structure factors of a two-dimensional Fermi superfluid within random phase approximation
• Pairing and radio-frequency spectroscopy in two-dimensional Fermi gases
• Quasi-two-dimensional Fermi gases at finite temperature
• Composite excitonic states in doped semiconductors
• Large Chern Number Topological Superfluids in Coupled Layer System
• Two-body state with p-wave interaction in one-dimensional waveguides under transversely anisotropic confinement
• Polaron spectroscopy of interacting Fermi systems: insights from exact diagonalization
• Quasi-1D atomic gases across wide and narrow confinement-induced-resonances
• Quantum Monte Carlo simulations of two-dimensional repulsive Fermi gases with population imbalance
• Improving Efficiency of Sympathetic Cooling in Atom-Ion and Atom-Atom Confined Collisions
• Dimensional Effects on the Momentum distribution of Bosonic Trimer States
• Slow dynamics of a mobile impurity interacting with an Anderson insulator
• One- and two-dimensional reductions of the mean-field description of degenerate Fermi gases
• Interaction energy and itinerant ferromagnetism in a strongly interacting Fermi gas in the absence of molecule formation
• Finite range and upper branch effects on itinerant ferromagnetism in repulsive Fermi gases: Bethe-Goldstone ladder resummation approach
• Observation of confinement-induced resonances in a 3D lattice
• Nonrelativistic Conformal Invariance in Mesoscopic Two-Dimensional Fermi Gases
• First and second sound of a unitary Fermi gas in highly oblate harmonic traps
• Thermodynamic equivalence of two-dimensional imperfect attractive Fermi and repulsive Bose gases
• Two-channel model description of confinement-induced Feshbach molecules
• Pseudogap phenomena in a two-dimensional ultracold Fermi gas near the Berezinskii-Kosterlitz-Thouless transition
• Scattering Hypervolume of Fermions in Two Dimensions
• Low-Dimensional Fluctuations and Pseudogap in Gaudin-Yang Fermi Gases
• Brueckner $G$-matrix approach to two-dimensional Fermi gases with the finite-range attractive interaction
• Significance of dressed molecules in a quasi-two-dimensional polarized Fermi gas
• Loading and detecting a three-dimensional Fermi gas in one-dimensional optical superlattice
• First and second sound in a two-dimensional dilute Bose gas across the Berezinskii-Kosterlitz-Thouless transition
• Kosterlitz-Thouless transition and vortex-antivortex lattice melting in two-dimensional Fermi gases with $p$- or $d$-wave pairing
• Bose polaron in spherically symmetric trap potentials: Ground states with zero and lower angular momenta
• Extracting non-local inter-polaron interactions from collisional dynamics
• Nonergodic dynamics for an impurity interacting with bosons in tilted lattice
• Pseudogap regime of a two-dimensional uniform Fermi gas
• Observing Spatial Charge and Spin Correlations in a Strongly-Interacting Fermi Gas
• A universal pairing gap measurement proposal by dynamical excitations in 2D doped attractive Fermi-Hubbard model with spin-orbit coupling
• Interplay between Rashba spin-orbit coupling and adiabatic rotation in a two-dimensional Fermi gas
• Pseudogap phenomena near the BKT transition of a two-dimensional ultracold Fermi gas in the crossover region
• Particle-hole ring diagrams for fermions in two dimensions
• Dynamical structure factor and a new method to measure the pairing gap in two-dimensional attractive Fermi-Hubbard model
• Precision thermodynamics of the strongly interacting Fermi gas in two dimensions
• Non-universal Fermi polaron in quasi two-dimensional quantum gases
• A New Mechanism for Sympathetic Cooling of Atoms and Ions in Atomic and Ion-Atomic Traps
• Efficient shortcuts-to-adiabaticity for loading an ultracold Fermi gas into higher orbital bands of one-dimensional optical lattice
• BCS-BEC crossover in a quasi-two-dimensional Fermi superfluid
• Two- and three- dimensional few-body systems in the universal regime