On-Chip Microwave Fock States and Quantum Homodyne Measurements
  We propose a method to couple metastable flux-based qubits to superconductive resonators based on a quantum-optical Raman excitation scheme that allows for the deterministic generation of stationary and propagating microwave Fock states and other weak quantum fields. Moreover, we introduce a suitable microwave quantum homodyne technique, with no optical counterpart, that enables the measurement of relevant field observables, even in the presence of noisy amplification devices. 
M. Mariantoni, M. J. Storcz, F. K. Wilhelm, W. D. Oliver, A. Emmert,   A. Marx, R. Gross, H. Christ, and E. Solano