Neutral impurities in a Bose-Einstein condensate for simulation of the Fröhlich-polaron Michael Hohmann, Farina Kindermann, Benjamin Gänger, Tobias Lausch, Daniel Mayer, Felix Schmidt and Artur Widera EPJ Quantum Technol., 2 1 (2015) 23 Published online: 14 November 2015 DOI: 10.1140/epjqt/s40507-015-0036-y