Radoslaw C Bialczak, McDermott, R. , Ansmann, M. , Hofheinz, M. , Katz, N. , Lucero, Erik , Neeley, Matthew , O'Connell, A. D, Wang, H. , Cleland, A. N, and Martinis, John M. 2007. “1/F Flux Noise In Josephson Phase Qubits”. Physical Review Letters, 99, Pp. 187006. doi:10.1103/PhysRevLett.99.187006.