Using Coherent Multimode Photon Addition for Sensing a Remote Phase
Nicola Biagi, Saverio Francesconi, Manuel Gessner, Alessandro Zavatta, Marco Bellini · Quantum Information and Measurement VI 2021 · 2021
We demonstrate a remote phase estimation technique based on delocalized single-photon addition onto distinct field modes and characterized by a sensitivity scaling with the intensity of light that never interacted with a distant sample.