Phase- and Transmission-Based Quantum-Enhanced Resonance Sensing at the Quantum Cramér Rao Bound
Mohammadjavad Dowran, Timothy S. Woodworth, Alberto M. Marino · Frontiers in Optics / Laser Science · 2020
We present and compare the ultimate sensitivity bounds with twin beams for resonance schemes based on changes in amplitude and phase of the probing light. Additionally, we present measurement strategies that saturate the ultimate bounds.