Coherent Ising machines—optical neural networks operating at the quantum limit

Y Yamamoto, K Aihara, T Leleu… - npj Quantum …, 2017 - nature.com
In this article, we will introduce the basic concept and the quantum feature of a novel
computing system, coherent Ising machines, and describe their theoretical and experimental …

Combinatorial optimization with physics-inspired graph neural networks

MJA Schuetz, JK Brubaker… - Nature Machine …, 2022 - nature.com
Combinatorial optimization problems are pervasive across science and industry. Modern
deep learning tools are poised to solve these problems at unprecedented scales, but a …

Quantum approximate optimization algorithm: Performance, mechanism, and implementation on near-term devices

L Zhou, ST Wang, S Choi, H Pichler, MD Lukin - Physical Review X, 2020 - APS
The quantum approximate optimization algorithm (QAOA) is a hybrid quantum-classical
variational algorithm designed to tackle combinatorial optimization problems. Despite its …

An Ising Hamiltonian solver based on coupled stochastic phase-transition nano-oscillators

S Dutta, A Khanna, AS Assoa, H Paik, DG Schlom… - Nature …, 2021 - nature.com
Combinatorial optimization problems belong to the non-deterministic polynomial time (NP)-
hard complexity class, and their computational requirements scale exponentially with …

A fully programmable 100-spin coherent Ising machine with all-to-all connections

PL McMahon, A Marandi, Y Haribara, R Hamerly… - Science, 2016 - science.org
Unconventional, special-purpose machines may aid in accelerating the solution of some of
the hardest problems in computing, such as large-scale combinatorial optimizations, by …

Exploratory combinatorial optimization with reinforcement learning

T Barrett, W Clements, J Foerster, A Lvovsky - Proceedings of the AAAI …, 2020 - aaai.org
Many real-world problems can be reduced to combinatorial optimization on a graph, where
the subset or ordering of vertices that maximize some objective function must be found. With …

Experimental investigation of performance differences between coherent Ising machines and a quantum annealer

R Hamerly, T Inagaki, PL McMahon, D Venturelli… - Science …, 2019 - science.org
Physical annealing systems provide heuristic approaches to solving combinatorial
optimization problems. Here, we benchmark two types of annealing machines—a quantum …

QAOA-in-QAOA: solving large-scale MaxCut problems on small quantum machines

Z Zhou, Y Du, X Tian, D Tao - Physical Review Applied, 2023 - APS
The design of fast algorithms for combinatorial optimization greatly contributes to a plethora
of domains such as logistics, finance, and chemistry. Quantum approximate optimization …

[BUKU][B] Optimization by GRASP

MGC Resende, CC Ribeiro - 2016 - Springer
Greedy randomized adaptive search procedures, or GRASP, were introduced by T. Feo and
M. Resende in 1989 as a probabilistic heuristic for solving hard set covering problems. Soon …

Towards large-scale quantum optimization solvers with few qubits

M Sciorilli, L Borges, TL Patti, D García-Martín… - Nature …, 2025 - nature.com
Quantum computers hold the promise of more efficient combinatorial optimization solvers,
which could be game-changing for a broad range of applications. However, a bottleneck for …