Cavity grid for scalable quantum computation with superconducting circuits F. Helmer, M. Mariantoni, A. G. Fowler, J. von Delft, E. Solano and F. Marquardt EPL, 85 5 (2009) 50007 Published online: 20 March 2009 DOI: 10.1209/0295-5075/85/50007