Phase-space theory for dispersive detectors of superconducting qubits
Phase-space theory for dispersive detectors of superconducting qubits
Motivated by recent experiments, we study the dynamics of a qubit quadratically coupled to its detector, a damped harmonic oscillator. We use a complex-environment approach, explicitly describing the dynamics of the qubit and the oscillator by means of their full Floquet state master equations in phase-space. We investigate the backaction …