Quantum state preparation in circuit QED via Landau-Zener tunneling K. Saito, M. Wubs, S. Kohler, P. Hänggi and Y. Kayanuma Europhys. Lett., 76 1 (2006) 22-28 Published online: 30 August 2006 DOI: 10.1209/epl/i2006-10232-4