Quantum gases and quantum coherence F. Chévy, R. Citro, A. Minguzzi, A. Recati, G. Lamporesi, T. Roscilde and F. Illuminati Eur. Phys. J. Special Topics, 226 12 (2017) 2693-2696 Published online: 26 July 2017 DOI: 10.1140/epjst/e2017-70085-y