%0 Journal Article
%T Polarons in the radio-frequency spectrum of a quasi-two-dimensional Fermi gas
%A Y. Zhang
%A W. Ong
%A I. Arakelyan
%A J. E. Thomas
%J Physics
%D 2012
%I arXiv
%R 10.1103/PhysRevLett.108.235302
%X We measure radio-frequency spectra for a two-component mixture of a $^6$Li atomic Fermi gas in the quasi-two-dimensional regime. Near the Feshbach resonance, where the transverse Fermi energy is large compared to the confinement-induced dimer binding energies for the initial and final states, we find that the observed resonances do not correspond to transitions between confinement-induced dimers. The spectrum appears to be well-described by transitions between noninteracting polaron states in two dimensions.
%U http://arxiv.org/abs/1201.3560v1