title: Radio-frequency 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 on the attractive side of the 3D Feshbach resonance and find the existence of confinement-induced molecules in very good agreement with theoretical predictions.
authors.affiliation: Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB30HE, United Kingdom.
authors.forename: Bernd
authors.initials: B
authors.lastname: Fröhlich
authors.forename: Michael
authors.initials: M
authors.lastname: Feld
authors.forename: Enrico
authors.initials: E
authors.lastname: Vogt
authors.forename: Marco
authors.initials: M
authors.lastname: Koschorreck
authors.forename: Wilhelm
authors.initials: W
authors.lastname: Zwerger
authors.forename: Michael
authors.initials: M
authors.lastname: Köhl