A quantum trampoline for ultra-cold atoms M. Robert-de-Saint-Vincent, J.-P. Brantut, Ch. J. Bordé, A. Aspect, T. Bourdel and P. Bouyer EPL, 89 1 (2010) 10002 Published online: 05 January 2010 DOI: 10.1209/0295-5075/89/10002