Quantum machines : measurement and control of engineered quantum systems ; École de Physique des Houches session XCVI 4 29 July 2011 Lectures. Real time feedback control of quantum optical input output systems Quantum noise and quantum measurement Circuit QED : superconducting qubits coupled to microwave photons Quantum logic gates in superconducting qubits Exploring quantum matter with ultracold atoms Readout of superconducting qubits Quantum optomechanics Micromechanics and superconducting circuits Two electron spin qubits in GaAs : control and dephasing due to nuclear spins Exploring the quantum world with photons trapped in cavities and Rydberg atoms SQUID amplifiers Quantum information science : experimental implementation with trapped ions Seminars. An introduction to laser cooling optomechanical systems Tomography schemes for characterizing itinerant microwave photon fields Using a frictionless pendulum for quantum measurement Quantum Bayesian approach to circuit QED measurement Superconducting quantum circuits : artificial atoms coupled to ID modes A superconducting artificial atom with two internal degrees of freedom