Detecting Friedel oscillations in ultracold Fermi gases Keno Riechers, Klaus Hueck, Niclas Luick, Thomas Lompe and Henning Moritz Eur. Phys. J. D, 71 9 (2017) 232 Published online: 07 September 2017 DOI: 10.1140/epjd/e2017-80275-6