Computational advantage of quantum random sampling

D Hangleiter, J Eisert - Reviews of Modern Physics, 2023 - APS
Quantum random sampling is the leading proposal for demonstrating a computational
advantage of quantum computers over classical computers. Recently the first large-scale …

An atomic boson sampler

AW Young, S Geller, WJ Eckner, N Schine, S Glancy… - Nature, 2024 - nature.com
A boson sampler implements a restricted model of quantum computing. It is defined by the
ability to sample from the distribution resulting from the interference of identical bosons …

Classical algorithm for simulating experimental Gaussian boson sampling

C Oh, M Liu, Y Alexeev, B Fefferman, L Jiang - Nature Physics, 2024 - nature.com
Gaussian boson sampling is a form of non-universal quantum computing that has been
considered a promising candidate for showing experimental quantum advantage. While …

Entanglement perspective on the quantum approximate optimization algorithm

M Dupont, N Didier, MJ Hodson, JE Moore, MJ Reagor - Physical Review A, 2022 - APS
Many quantum algorithms seek to output a specific bitstring solving the problem of interest—
or a few if the solution is degenerate. It is the case for the quantum approximate optimization …

Noise and the frontier of quantum supremacy

A Bouland, B Fefferman, Z Landau… - 2021 IEEE 62nd Annual …, 2022 - ieeexplore.ieee.org
Noise is the defining feature of the NISQ era, but it remains unclear if noisy quantum devices
are capable of quantum speedups. Quantum supremacy experiments have been a major …

Simulating the quantum Fourier transform, Grover's algorithm, and the quantum counting algorithm with limited entanglement using tensor networks

M Niedermeier, JL Lado, C Flindt - Physical Review Research, 2024 - APS
Quantum algorithms reformulate computational problems as quantum evolutions in a large
Hilbert space. Most quantum algorithms assume that the time evolution is perfectly unitary …

Classical simulation of boson sampling based on graph structure

C Oh, Y Lim, B Fefferman, L Jiang - Physical Review Letters, 2022 - APS
Boson sampling is a fundamentally and practically important task that can be used to
demonstrate quantum supremacy using noisy intermediate-scale quantum devices. In this …

Spoofing cross-entropy measure in boson sampling

C Oh, L Jiang, B Fefferman - Physical Review Letters, 2023 - APS
Cross-entropy (XE) measure is a widely used benchmark to demonstrate quantum
computational advantage from sampling problems, such as random circuit sampling using …

Simulating lossy Gaussian boson sampling with matrix-product operators

M Liu, C Oh, J Liu, L Jiang, Y Alexeev - Physical Review A, 2023 - APS
Gaussian boson sampling, a computational model that is widely believed to admit quantum
supremacy, has already been experimentally demonstrated and is claimed to surpass the …

On classical simulation algorithms for noisy boson sampling

C Oh, L Jiang, B Fefferman - arxiv preprint arxiv:2301.11532, 2023 - arxiv.org
We present a classical algorithm that approximately samples from the output distribution of
certain noisy Boson Sampling experiments. This algorithm is inspired by a recent result of …