All-optical pump-and-probe detection of dynamical correlations in a two-dimensional Fermi gas
Quantum Gases
2010-06-04 v2 Strongly Correlated Electrons
Abstract
We propose an all-optical scheme to probe the dynamical correlations of a strongly-interacting gas of ultracold atoms. The proposed technique is based on a pump-and-probe scheme: a coherent light pulse is initially converted into an atomic coherence and later retrieved after a variable storage time. The efficiency of the proposed method to measure the one-particle Green function of the gas is validated by numerical and analytical calculations of the expected signal for the two cases of a normal Fermi gas and a BCS superfluid state. Protocols to extract the superfluid gap and the full quasi-particle dispersions are discussed.
Keywords
Cite
@article{arxiv.0905.2826,
title = {All-optical pump-and-probe detection of dynamical correlations in a two-dimensional Fermi gas},
author = {Tung-Lam Dao and Corinna Kollath and Iacopo Carusotto and Michael Koehl},
journal= {arXiv preprint arXiv:0905.2826},
year = {2010}
}
Comments
4 pages, 4 figures. To be published in Phys. Rev. A