Quantum Measurement and Parametric Devices
Readout, Josephson amplification, squeezing and open-system dynamics.
Explore the 6 concepts
Concept 32Readout resonator and measurement chainDispersive readout maps qubit states to microwave field responses.Concept 33Josephson parametric amplifiersJosephson nonlinearity amplifies weak microwave signals near the quantum noise limit.Concept 34Two-mode squeezing circuitsThree- or four-wave mixing can generate correlated microwave photon pairs.Concept 35Quantum-limited measurementInformation gain and disturbance are linked by quantum mechanics.Concept 36Lindblad master equationsOpen-system models describe relaxation, dephasing and driven gates.Concept 37Spectroscopy and calibrationMicrowave spectroscopy reconstructs transition frequencies and couplings.