Single-step phase-engineered pulse for active readout cavity reset with a known qubit state
The Single-Step Phase-Engineered (SSPE) pulse scheme is a hardware-efficient method to actively reset a readout cavity by appending a tailored phase and amplitude segment to a standard square readout pulse. This technique achieves arbitrarily fast, overshoot-free cavity photon depletion, significantly outperforming existing protocols like CLEAR. It proves practical for rapid cavity reset when the qubit state is known.