Phase-Programmable Gaussian Boson Sampling Using Stimulated Squeezed Light

We present a free open source package for high performance simulation and numerical investigation of boson samplers and, more generally, multi-photon interferometry. Our package is written in Julia, allowing C-like performance with easy notations and fast, high-level coding. Underlying building blocks can easily be modified without complicated low-level language modifications. We present a great variety of routines for tasks related to boson sampling, such as statistical tools, optimization methods and classical samplers. Special emphasis is put on validation of experiments, where we present novel algorithms. This package goes beyond the boson sampling paradigm, allowing for the investigation of new interferometric behaviours such as bosonic bunching.

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Efficient validation of Boson Sampling from binned photon-number distributions

Seron,

Novo,

Arkhipov

et al. 2024

Quantum

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In order to substantiate claims of quantum computational advantage, it is crucial to develop efficient methods for validating the experimental data. We propose a test of the correct functioning of a boson sampler with single-photon inputs that is based on how photons distribute among partitions of the output modes. Our method is versatile and encompasses previous validation tests based on bunching phenomena, marginal distributions, and even some suppression laws. We show via theoretical arguments and numerical simulations that binned-mode photon number distributions can be used in practical scenarios to efficiently distinguish ideal boson samplers from those affected by realistic imperfections, especially partial distinguishability of the photons.

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Phase-Programmable Gaussian Boson Sampling Using Stimulated Squeezed Light

Abstract: We report Gaussian boson sampling experiments which produce up to 113 photon detection events out of a 144-mode photonic circuit. We reveal genuine high-order correlation our samples, which is evidence of robustness against classical simulation.

Cited by 3 publications

References 3 publications

Quanten-Technologien aus der Sicht eines Halbleiterkonzerns

Quanten-Technologien aus der Sicht eines Halbleiterkonzerns

BosonSampling.jl: A Julia package for quantum multi-photon interferometry

Efficient validation of Boson Sampling from binned photon-number distributions

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