Scattershot multiboson correlation sampling with random photonic inner-mode multiplexing

Abstract Multiphoton interference is an essential phenomenon at the very heart not only of fundamental quantum optics and applications in information processing sensing but also demonstrations computational supremacy boson sampling experiments relying on linear optical interferometers. However, scalable with either photon number states or squeezed are challenged by need to generate a large photons fixed temporal frequency spectra from one experimental run another. Unfortunately, even well-established standard multiplexing techniques employed spectral properties affected detrimental effects losses, distorsions reduction purity. Here, we employ correlation measurements photonic inner modes, time frequency, interferometer input output ensure occurrence multiphoton pure random overlap sample Indeed, introducing technique where generated inner-mode parameters, it possible substantially enhance probability successfully samples overcome typical drawbacks multiplexing. We demonstrate classical hardness resulting problem scattershot multiboson based this technique. Therefore, these results shed new light complexity allow us scalability schemes. Furthermore, research provides exciting route toward future resources as well beyond sampling.