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.

arXiv comment4 pages, 4 figures

References in corpus (28)

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• Creation of ultracold molecules from a Fermi gas of atoms
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• Radio-Frequency Spectroscopy of Ultracold Fermions
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• p-Wave Interactions in Low-Dimensional Fermionic gases
• Observation of a two-dimensional Fermi gas of atoms
• Spectral Functions and rf Response of Ultracold Fermionic Atoms
• Production of a Fermi gas of atoms in an optical lattice
• Tomographic RF Spectroscopy of a Trapped Fermi Gas at Unitarity
• Superfluid transition in quasi2D Fermi gases
• 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
• Feshbach resonances in a quasi-2D atomic gas

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