Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy

Details Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy Measuring the one-particle excitations of ultracold fermionic atoms by stimulated Raman spectroscopy

2006-11-08

arxiv.org/abs/cond-mat/0611206v3

Phys. Rev. Lett. 98, 240402 (2007)

Physics

Condensed Matter

Other Condensed Matter

5 pages, 3 figures accepted for publication at Phys. Rev. Letters

Scientific paper

10.1103/PhysRevLett.98.240402

We propose a Raman spectroscopy technique which is able to probe the one-particle Green's 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 pseudo-gap are clearly visible.

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