2026 Hiroki Takesue: Engineering and Technology Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Engineering and Technology	56	2784	2663	38	36	241	13169

Research.com Recognitions

2017 - Nishina Memorial Prize

Overview

Hiroki Takesue is a researcher primarily affiliated with NTT in Japan. Their work spans several areas within computer science, with a focus on topics related to quantum computing and neural networks.

Takesue's recent notable publications include:

"100,000-spin coherent Ising machine," 2021, Science Advances
"Roadmap for unconventional computing with nanotechnology," 2024, Nano Futures
"Simulating Ising Spins in External Magnetic Fields with a Network of Degenerate Optical Parametric Oscillators," 2020, Physical Review Applied
"A simple low-latency real-time certifiable quantum random number generator," 2021, Nature Communications
"Optimization by Neural Networks in the Coherent Ising Machine and its Application to Wireless Communication Systems," 2020, IEICE Transactions on Communications

The main research fields covered by Takesue include Computer Science, with significant contributions to subfields such as:

Artificial Intelligence
Electrical and Electronic Engineering
Atomic and Molecular Physics, and Optics
Computer Networks and Communications
Computational Theory and Mathematics

Their work emphasizes several key topics, notably:

Neural Networks and Reservoir Computing
Quantum Computing Algorithms and Architecture
Quantum Information and Cryptography
Optical Network Technologies
Quantum many-body systems
Quantum Mechanics and Applications
Neural Networks and Applications

Frequent coauthors collaborating with Takesue include:

Toshimori Honjo
Takuya Ikuta
Kensuke Inaba
Takahiro Inagaki
Takeshi Umeki

Regular publication venues for Takesue's research include:

arXiv (Cornell University)
Conference on Lasers and Electro-Optics
Physical Review Applied
NTT technical review
Science Advances

Takesue was awarded the Nishina Memorial Prize in 2017, a recognition related to scientific achievement.

Best Publications

Field test of quantum key distribution in the Tokyo QKD Network

Sasaki M;Fujiwara M;Ishizuka H;Klaus W

1318
Citations
Quantum key distribution over a 40-dB channel loss using superconducting single-photon detectors

Hiroki Takesue;Sae Woo Nam;Qiang Zhang;Robert H. Hadfield;Robert H. Hadfield

899
Citations
A coherent Ising machine for 2000-node optimization problems.

Takahiro Inagaki;Yoshitaka Haribara;Yoshitaka Haribara;Koji Igarashi;Tomohiro Sonobe;Tomohiro Sonobe

820
Citations
Field test of quantum key distribution in the Tokyo QKD Network

M. Sasaki;M. Fujiwara;H. Ishizuka;W. Klaus

792
Citations
A fully programmable 100-spin coherent Ising machine with all-to-all connections

Peter McMahon;Alireza Marandi;Yoshitaka Haribara;Ryan Hamerly

736
Citations
Experimental investigation of performance differences between coherent Ising machines and a quantum annealer

Ryan Hamerly;Ryan Hamerly;Takahiro Inagaki;Peter L. McMahon;Peter L. McMahon;Peter L. McMahon;Davide Venturelli;Davide Venturelli

470
Citations
Highly efficient single-photon detection at communication wavelengths by use of upconversion in reverse-proton-exchanged periodically poled LiNbO3 waveguides.

Carsten Langrock;Eleni Diamanti;Rostislav V. Roussev;Yoshihisa Yamamoto

415
Citations
Generation of polarization-entangled photon pairs and violation of Bell’s inequality using spontaneous four-wave mixing in a fiber loop

Hiroki Takesue;Kyo Inoue

286
Citations
100,000-spin coherent Ising machine.

Toshimori Honjo;Tomohiro Sonobe;Kensuke Inaba;Takahiro Inagaki

284
Citations
Large-scale Ising spin network based on degenerate optical parametric oscillators

Takahiro Inagaki;Kensuke Inaba;Ryan Hamerly;Kyo Inoue

275
Citations
1.5-μm band quantum-correlated photon pair generation in dispersion-shifted fiber: suppression of noise photons by cooling fiber

Hiroki Takesue;Kyo Inoue

263
Citations
Quantum teleportation over 100 km of fiber using highly efficient superconducting nanowire single-photon detectors

Hiroki Takesue;Shellee D. Dyer;Martin J. Stevens;Varun Verma

241
Citations
Entanglement distribution over 300 km of fiber.

Takahiro Inagaki;Nobuyuki Matsuda;Osamu Tadanaga;Masaki Asobe

235
Citations
Coherent Ising machines—optical neural networks operating at the quantum limit

Yoshihisa Yamamoto;Kazuyuki Aihara;Timothee Leleu;Ken-ichi Kawarabayashi

232
Citations
Differential phase shift quantum key distribution experiment over 105 km fibre

H Takesue;E Diamanti;T Honjo;C Langrock

219
Citations
Wavelength channel data rewrite using saturated SOA modulator for WDM networks with centralized light sources

H. Takesue;T. Sugie

204
Citations
A monolithically integrated polarization entangled photon pair source on a silicon chip

Nobuyuki Matsuda;Hanna Le Jeannic;Hanna Le Jeannic;Hiroshi Fukuda;Tai Tsuchizawa

190
Citations
Entanglement generation using silicon wire waveguide

Hiroki Takesue;Yasuhiro Tokura;Hiroshi Fukuda;Tai Tsuchizawa

174
Citations
Security of differential-phase-shift quantum key distribution against individual attacks

Edo Waks;Hiroki Takesue;Yoshihisa Yamamoto

158
Citations
Generation of high-purity entangled photon pairs using silicon wire waveguide.

Ken-ichi Harada;Hiroki Takesue;Hiroshi Fukuda;Tai Tsuchizawa

151
Citations
Generation of 1.5 − μ m band time-bin entanglement using spontaneous fiber four-wave mixing and planar light-wave circuit interferometers

Hiroki Takesue;Kyo Inoue

140
Citations