Measurement of the trapping lifetime close to a cold metallic surface on a cryogenic atom-chip A. Emmert, A. Lupaşcu, G. Nogues, M. Brune, J.-M. Raimond and S. Haroche Eur. Phys. J. D, 51 2 (2009) 173-177 Published online: 16 January 2009 DOI: 10.1140/epjd/e2009-00001-5