Effect of vortices on the spin-flip lifetime of atoms in superconducting atom-chips G. Nogues, C. Roux, T. Nirrengarten, A. Lupaşcu, A. Emmert, M. Brune, J.-M. Raimond, S. Haroche, B. Plaçais and J.-J. Greffet EPL, 87 1 (2009) 13002 Published online: 24 July 2009 DOI: 10.1209/0295-5075/87/13002