Quantum sensing of weak radio-frequency signals by pulsed Mollow absorption spectroscopy
Quantum sensing of weak radio-frequency signals by pulsed Mollow absorption spectroscopy
Abstract Quantum sensors—qubits sensitive to external fields—have become powerful detectors for various small acoustic and electromagnetic fields. A major key to their success have been dynamical decoupling protocols which enhance sensitivity to weak oscillating (AC) signals. Currently, those methods are limited to signal frequencies below a few MHz. Here we …