Quantum nondemolition measurements with optical parametric amplifiers for ultrafast quantum information processing
Ryotatsu Yanagimoto, Rajveer Nehra, Ryan Hamerly, Edwin Ng, Alireza Marandi, Hideo Mabuchi · 2023
We show that quantum nondemolition measurements using an optical parametric amplifier can be a universal tool for ultrafast quantum information processing, enabling, photon-number-resolving measurements and deterministic generation of Gottesman-Kitaev-Preskill (GKP) states.