Precise Spectroscopy of High-Frequency Oscillating Fields with a Single-Qubit Sensor

Precise spectroscopy of oscillating fields plays a significant role in many fields. Here, we propose an experimentally feasible scheme to measure the frequency fast-oscillating field using single-qubit sensor. By invoking stable classical clock, signal phase correlations between successive measurements enable us extract target with extremely high precision. In addition, integrate dynamical decoupling technique into framework suppress influence slow environmental noise. Our is variety atomic and single solid-state spin systems within state-of-the-art experimental capabilities as versatile tool for quantum spectroscopy.