arXiv:cond-mat/0611206 · Physical Review Letters

Measuring the One-Particle Excitations of Ultracold Fermionic Atoms by Stimulated Raman Spectroscopy

Tung-Lam Dao, Antoine Georges, Jean Dalibard, Christophe Salomon, Iacopo Carusotto

Published Jun 14, 2007• 122 citations

Abstract

We propose a Raman spectroscopy technique which is able to probe the one-particle Green function, the Fermi surface, and the quasiparticles of a gas of strongly interacting ultracold atoms. We give quantitative examples of experimentally accessible spectra. The efficiency of the method is validated by means of simulated images for the case of a usual Fermi liquid as well as for more exotic states: specific signatures of, e.g., a d-wave pseudogap are clearly visible.

DOI: 10.1103/physrevlett.98.240402

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