Multiplexed Photon Number Measurement
Antoine Essig, Quentin Ficheux, Théau Peronnin, Nathanaël Cottet, Raphaël Lescanne, Alain Sarlette, Pierre Rouchon, Zaki Leghtas, Benjamin Huard · Physical Review X · 2021
By using qubit frequencies to encode information, an experiment demonstrates an approach to quantum measurement that replaces sequential observations with simultaneous ones, greatly improving measurement time.