Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy
Authors: Dao T.L., Georges A., Dalibard J., Salomon C., Carusotto I.
Autors Affiliation: Centre de Physique The´orique, CNRS, Ecole Polytechnique, Route de Saclay, 91128 Palaiseau Cedex, France;
Laboratoire Kastler-Brossel, CNRS, Ecole Normale Supe´rieure, 24, rue Lhomond, 75231 Paris Cedex 05, France;
CNR-INFM BEC Center and Universita` di Trento, 38050 Povo, Italy;
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.
Journal/Review: PHYSICAL REVIEW LETTERS
Volume: 98 (24) Pages from: 240402-1 to: 240402-4
KeyWords: Fermi gas; stimulated Raman spectroscopy; strongly correlated; photoemission spectroscopy; DOI: 10.1103/PhysRevLett.98.240402Citations: 97data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2023-09-24References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here