Radio-Frequency Spectroscopy of a Strongly Interacting Two-Dimensional Fermi Gas

2010/12/31 by Bernd Fröhlich, Michael S. Feld, Michael Feld +5 · 3 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Fermi Gamma-ray Space Telescope #Fermi gas #Fermi resonance #Feshbach resonance #Lattice (music) #Measure (data warehouse) #Molecule #Optical lattice #Physics #Quantum mechanics #Quantum optics and atomic interactions #Resonance (particle physics) #Spectroscopy #cond-mat.quant-gas #physics.atm-clus #physics.atom-ph #quant-ph

paper · pdf · doi:10.1103/physrevlett.106.105301

published as Phys. Rev. Lett. 106, 105301 (2011) · 4 pages, 4 figures

arxiv created 2011/02/05 · openalex publication_date 2011/03/08 · arxiv updated 2011/03/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

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 on the attractive side of the 3D Feshbach resonance and find the existence of confinement-induced molecules in very good agreement with theoretical predictions.

Citations

• Many-body physics with ultracold gases
• Decoherence and Collisional Frequency Shifts of Trapped Bosons and Fermions
• Radio-Frequency Spectroscopy of Ultracold Fermions
• Using photoemission spectroscopy to probe a strongly interacting Fermi gas
• Production of a Fermi gas of atoms in an optical lattice
• Radio-frequency transitions on weakly bound ultracold molecules

Cited by

• Mass-imbalanced three-body systems in two dimensions
• Separation-induced resonances in quasi-one-dimensional ultracold atomic gases
• Two-Dimensional Fermi Liquid with Attractive Interactions