Bloch oscillations of ultracold atoms: A tool for metrological measurements P. Cladé, M. Cadoret, E. De Mirandes, S. Guellati-Khélifa, C. Schwob, F. Nez, L. Julien and F. Biraben J. Phys. IV France, 135 (2006) 3-7 Published online: 23 November 2006 DOI: 10.1051/jp4:2006135002