Qubit measurement error from coupling with a detuned neighbor in circuit QED
Qubit measurement error from coupling with a detuned neighbor in circuit QED
In modern circuit QED architectures, superconducting transmon qubits are measured via the state-dependent phase and amplitude shift of a microwave field leaking from a coupled resonator. Determining this shift requires integrating the field quadratures for a nonzero duration, which can permit unwanted concurrent evolution. Here we investigate such dynamical degradation …