Two-Dimensional Homogeneous Fermi Gases
arXiv:1704.06315 · doi:10.1103/PhysRevLett.120.060402
Abstract
We report on the experimental realization of homogeneous two-dimensional (2D) Fermi gases trapped in a box potential. In contrast to harmonically trapped gases, these homogeneous 2D systems are ideally suited to probe local as well as non-local properties of strongly interacting manybody systems. As a first measurement, we use a local probe to extract the equation of state (EOS) of a non-interacting Fermi gas. We then perform matter wave focusing to extract its momentum distribution and directly observe Pauli blocking in a near unity occupation of momentum states. Finally, we measure the momentum distribution of strongly interacting homogeneous 2D gases in the crossover between attractively interacting fermions and deeply-bound bosonic molecules.
arXiv commentMain text: 6 pages, 4 figures. Supplementary Material: 4 pages, 5 figures. This version: Updated to reflect the changes made in the published version
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