Observation of a two-dimensional Fermi gas of atoms

Abstract

We have prepared a degenerate gas of fermionic atoms which move in two dimensions while the motion in the third dimension is "frozen" by tight confinement and low temperature. {\it In situ} imaging provides direct measurement of the density profile and temperature. The gas is confined in a defect-free optical potential, and the interactions are widely tunable by means of a Fano--Feshbach resonance. This system can be a starting point for exploration of 2D Fermi physics and critical phenomena in a pure, controllable environment.

References in corpus (11)

• Many-Body Physics with Ultracold Gases
• Theory of ultracold Fermi gases
• Vortices and Superfluidity in a Strongly Interacting Fermi Gas
• Observation of Bose-Einstein Condensation of Molecules
• Crossover from a molecular Bose-Einstein condensate to a degenerate Fermi gas
• Collisional stability of a three-component degenerate Fermi gas
• Pure Gas of Optically Trapped Molecules Created from Fermionic Atoms
• Universal Fermi gases in mixed dimensions
• Is a gas of strongly interacting atomic fermions a nearly perfect fluid?
• Crystalline phase of strongly interacting Fermi mixtures
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Cited by in corpus (45)

• Radiofrequency spectroscopy of a strongly interacting two-dimensional Fermi gas
• 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
• Spin-Imbalanced Quasi-Two-Dimensional Fermi Gases
• Polarons and Molecules in a Two-Dimensional Fermi Gas
• Exact few-body results for strongly correlated quantum gases in two dimensions
• Two trapped particles interacting by a finite-ranged two-body potential in two spatial dimensions
• 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
• Pairing of few Fermi atoms in one dimension
• Molecule and polaron in a highly polarized two-dimensional Fermi gas with spin-orbit coupling
• Tuning Rashba and Dresselhaus spin-orbit couplings: Effects on singlet and triplet condensation with Fermi atoms
• A long-lived Higgs mode in a two-dimensional confined Fermi gas
• 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
• Six-dimensional time-space crystalline structures
• 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
• Quasi-two-dimensional Fermi gases at finite temperature
• Magnetic lattices for ultracold atoms and degenerate quantum gases
• Effective-range dependence of two-dimensional Fermi gases
• Anisotropic quantum scattering in two dimensions
• Pressure profiles of nonuniform two-dimensional atomic Fermi gases
• Large Chern Number Topological Superfluids in Coupled Layer System
• Dimensional Effects on the Momentum distribution of Bosonic Trimer States
• Josephson effect with superfluid fermions in the two-dimensional BCS-BEC crossover
• Pair condensation in the BCS-BEC crossover of ultracold atoms loaded onto a 2D square lattice
• First and second sound of a unitary Fermi gas in highly oblate harmonic traps
• Flow-Induced Charge Modulation in Superfluid Atomic Fermions Loaded into an Optical Kagome Lattice
• Brueckner $G$-matrix approach to two-dimensional Fermi gases with the finite-range attractive interaction
• 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
• Stability of FFLO states in optical lattices with bilayer structure
• Significance of dressed molecules in a quasi-two-dimensional polarized Fermi gas
• Pseudogap phenomena near the BKT transition of a two-dimensional ultracold Fermi gas in the crossover region
• Pseudogap regime of a two-dimensional uniform Fermi gas
• Interplay between Rashba spin-orbit coupling and adiabatic rotation in a two-dimensional Fermi gas
• Triplet character of 2D-fermion dimers arising from $s$-wave attraction via spin-orbit coupling and Zeeman splitting