Correlators Exceeding One in Continuous Measurements of Superconducting Qubits
Correlators Exceeding One in Continuous Measurements of Superconducting Qubits
We consider the effect of phase backaction on the correlator $\langle I(t)\, I(t+\tau )\rangle$ for the output signal $I(t)$ from continuous measurement of a qubit. We demonstrate that the interplay between informational and phase backactions in the presence of Rabi oscillations can lead to the correlator becoming larger than 1, …