Back-action of a driven nonlinear resonator on a superconducting qubit
Back-action of a driven nonlinear resonator on a superconducting qubit
We study the backaction of a driven nonlinear resonator on a multi-level superconducting qubit. Using unitary transformations on the multi-level Jaynes-Cummings Hamiltonian and quantum optics master equation, we derive an analytical model that goes beyond linear response theory. Within the limits of validity of the model, we obtain quantitative agreement …