Result for "coherent Ising machine",93

Cover : Coherent Ising Machine for Combinatorial Optimization Problems

Cover : Coherent Ising Machine for Combinatorial Optimization Problems Cover : Coherent Ising

https://www.rd.ntt/e/brl/result/activities/file/report16/cover_E.html

A coherent Ising machine for solving complex optimization problems｜NTT Basic Research Laboratories | NTT R&D Website

A coherent Ising machine for solving complex optimization problems｜NTT Basic Research Laboratories

https://www.rd.ntt/e/brl/latesttopics/2016/10/latest_topics_201610201319.html

Hiroki Takesue Homepage

coherent Ising machine Controlled phase gate for time-bin qubits Coherent Network Computing 2019 to be held

https://www.rd.ntt/brl/people/htakesue/

Research

Research Research Coherent Ising Machine A coherent Ising machine (CIM) is a network of laser

https://www.rd.ntt/brl/people/htakesue/research.html

Coherent Ising Machine for Combinatorial Optimization Problems

Coherent Ising Machine for Combinatorial Optimization Problems Coherent Ising Machine for

https://www.rd.ntt/e/brl/result/activities/file/report16/report19E.html

Performance Comparison between Coherent Ising Machines and Quantum Annealer｜NTT R&D Website

developed QAs with as many as thousands of qubits [1]. A coherent Ising machine (CIM) is another Ising

https://www.rd.ntt/e/research/JN202103_10945.html

Publications

, T. Inagaki, K. Inaba, T. Ikuta, and T. Honjo, "Large-scale coherent Ising machine," J. Phys. Soc

https://www.rd.ntt/brl/people/htakesue/papers.html

100,000-spin coherent Ising machine｜NTT Basic Research Laboratories | NTT R&D Website

100,000-spin coherent Ising machine｜NTT Basic Research Laboratories | NTT R&D Website NTT R&D

https://www.rd.ntt/e/brl/latesttopics/2021/09/latest_topics_202109301549.html

Moving Ising Machines Forward While Taking a Step towards Quantum Networks by Multi-photon Entangled States Based on Time-bin Qubits | NTT R&D Website

Time-bin Qubits coherent Ising machine multi-photon entanglement time-bin qubit Solving a combinatorial

https://www.rd.ntt/e/research/JN202506_34177.html

Toshimori Honjo, Ph.D.

development of Coherent Ising Machine. He is a member of Information Processing Society of Japan (IPSJ

https://www.rd.ntt/brl/people/honjo/

Quantum Optical State Control Research Group | NTT Basic Research Laboratories | NTT R&D Website

(OPOs) haves been studied to realize a coherent Ising machine for combinatorial optimization problems. A

https://www.rd.ntt/e/brl/group_introduction/group_009.html

List of In-house Award Winners

Corporation President Award H. Takesue T. Inagaki K. Inaba T. Honjyo T. Umeki Coherent Ising Machine for

https://www.rd.ntt/e/brl/result/activities/file/report16/data05E.html

量子光制御研究グループ｜NTT物性科学基礎研究所｜NTT R&D Website

coherent Ising machine" Sci. Adv. 11 (7), eads7223 (2025). Publications in 2024 K. Inoue, and T. Honjo

https://www.rd.ntt/brl/group_introduction/group_009.html

A Computing System for Supporting Application Development Using Ising Machines | NTT R&D Website

optimization problems. Likewise, NTT laboratories are developing a laser-based coherent Ising machine[3]called

https://www.rd.ntt/e/research/JN202309_23087.html

I Wish to Contribute to the World through Research for the Rest of My Life | NTT R&D Website

combinatorial optimization problems using the world's largest-scale coherent Ising machine It has been four

https://www.rd.ntt/e/research/JN202204_17846.html

Applying Optical Oscillator Networks to Diverse Problems as the First Step to Information Processing Systems of the Future | NTT R&D Website

Diverse Problems as the First Step to Information Processing Systems of the Future coherent Ising machine

https://www.rd.ntt/e/research/JN202306_22121.html

Our Research Work | NTT Center for Computing Technologies | NTT R&D Website

between businesses Hybrid Computing Platform for Combinatorial Optimization with the Coherent Ising

https://www.rd.ntt/e/cct/research-results/

Research Activities in NTT Basic Research Laboratories Vol. 27 (2016)

Optical Lattice Coherent Ising Machine for Combinatorial Optimization Problems Quantum State Tomography

https://www.rd.ntt/e/brl/result/activities/file/report16/2016_E.html

コヒーレントイジングマシンと量子アニーリングの性能比較実験｜NTT R&D Website

. Kawarabayashi, K. Inoue, S. Utsunomiya, and H. Takesue:“A coherent Ising machine for 2000-node optimization

https://www.rd.ntt/research/JN202103_10945.html

光を使って難問を解く新しい量子計算原理を実現｜NTT物性科学基礎研究所 | NTT R&D Website

coherent Ising machine for 2000-node optimization problems" to appear in Science （2000ノードの最適化問題を解くコヒ

https://www.rd.ntt/brl/latesttopics/2016/10/latest_topics_201610211121.html

Activities toward New-principle Computers｜NTT R&D Website

laboratories developed a coherent Ising machine (CIM) that can implement all-to-all spin couplings by using

https://www.rd.ntt/e/research/JN202103_10916.html

ISNTT2017 - International School and Symposium on Nanoscale Transport and Photonics

University of Tokyo, Japan Lecture 3"Coherent Ising machine for solving complex optimization problems" Dr

https://www.rd.ntt/brl/event/isntt2017/brlschool.html

Basic Technologies toward the All-Photonics Network | NTT R&D Website

optical transistors [4]. 6. LASOLV™ coherent Ising machine Next-generation computers, many of which have

https://www.rd.ntt/e/research/JN20200126_h.html

Latest Research Contents | NTT Basic Research Laboratories | NTT R&D Website

Using a Graphene Electron Interferometer 09/30/2021 100,000-spin coherent Ising machine 05/14/2021

https://www.rd.ntt/e/brl/latesttopics/

Hiroki Takesue | NTT R&D Website

, integrated quantum photonics, coherent Ising machine More Research Activity Related Contents

https://www.rd.ntt/e/organization/researcher/superior/s_009.html

Profile

network," Project "Coherent Ising machine based on large scale time-division-multiplexed optical

https://www.rd.ntt/brl/people/htakesue/bio.html

LASOLV™ Computing System: Hybrid Platform for Efficient Combinatorial Optimization | NTT R&D Website

semiconductor chips, such as Fujitsu’s Digital Annealing Unit, and the coherent Ising machine (CIM) [1]. The CIM

https://www.rd.ntt/e/research/JN20191127_h.html

社内表彰受賞者一覧

, 4893 (2016). 2017.3.27 物性科学基礎研究所 所長表彰 論文賞 稲垣卓弘 本庄利守 梅木毅伺 圓佛晃次 忠永 修 竹ノ内弘和 武居弘樹 "A coherent Ising machine

https://www.rd.ntt/brl/result/activities/file/report16/data05J.html

Expectations and Prospects for Innovation in Quantum Technology | NTT R&D Website

of a certain scale. NTT reported that its coherent Ising machine called LASOLV™ can solve

https://www.rd.ntt/e/research/JN202304_21549.html

List of Visitors’ Talks

cells July 3 Mr. Ryan Hamerly (Stanford University, U.S.A.) Theory of Coherent Ising Machine: Pulse

https://www.rd.ntt/e/brl/result/activities/file/report15/data03E.html

Large-scale artificial spin network realized using long-distance optical fiber cavity｜NTT Basic Research Laboratories | NTT R&D Website

achievement will provide a fundamental component for the coherent Ising machine (CIM), which is expected to be

https://www.rd.ntt/e/brl/latesttopics/2016/04/latest_topics_201604181637.html

Changing the World through Basic Research on Light Demands a Pioneering Spirit and Results beyond the Ordinary | NTT R&D Website

a large-scale coherent Ising machine (CIM). This is a type of computer used to solve through

https://www.rd.ntt/e/research/JN20180651_h.html

Annual_report_2019_E.pdf

density = 50%) Low edge density graph (d: number of edges per vertex) Coherent Ising machine (CIM) Quantum

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2019_E.pdf

論文｜NTT物性科学基礎研究所｜NTT R&D Website

"Optimization by Neural Networks in the Coherent Ising Machine and its Application to Wireless Communication

https://www.rd.ntt/brl/result/publications/paper_2021.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

. Kasahara "Observing a Phase Transition in a Coherent Ising Machine" Phys. Rev. Appl. 19 (3), L031001 (2023

https://www.rd.ntt/brl/result/publications/paper_2023.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

. Kasahara "Observing a Phase Transition in a Coherent Ising Machine" Phys. Rev. Appl. 19 (3), L031001 (2023

https://www.rd.ntt/e/brl/result/publications/paper_2023.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

"Optimization by Neural Networks in the Coherent Ising Machine and its Application to Wireless Communication

https://www.rd.ntt/e/brl/result/publications/paper_2021.html

国際会議招待講演一覧

Optical Parametric Oscillator for Coherent Ising machine", IEEE Photonics Society Summer Topical Meeting

https://www.rd.ntt/brl/result/activities/file/report15/data11J.html

List of Invited Talks

-Division-Multiplexed Degenerate Optical Parametric Oscillator for Coherent Ising machine", IEEE Photonics

https://www.rd.ntt/e/brl/result/activities/file/report15/data10E.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

. Hasegawa "High-Speed Resource Allocation Algorithm Using a Coherent Ising Machine for NOMA Systems" IEEE

https://www.rd.ntt/brl/result/publications/paper_2024.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

. Hasegawa "High-Speed Resource Allocation Algorithm Using a Coherent Ising Machine for NOMA Systems" IEEE

https://www.rd.ntt/e/brl/result/publications/paper_2024.html

Innovative Network for 2030 (Beyond 2020) | NTT R&D Website

coherent Ising machine and LASOLVTM Computing System/Software Development Kit (LCS/SDK)*. Combining these

https://www.rd.ntt/e/research/JN20200122_h.html

NTTBrl_honbun_E_190306.indd

Communication Experiments in Telecommunication Band Coherent Ising Machine Research Subject Distinguished

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2018_E.pdf

学術論文出版一覧

, S. Utsunomiya, and H. Takesue, "A Coherent Ising Machine for 2000-Node Optimization Problems

https://www.rd.ntt/brl/result/activities/file/report16/data10J.html

Publication List

, K. Kawarabayashi, K. Inoue, S. Utsunomiya, and H. Takesue, "A Coherent Ising Machine for 2000-Node

https://www.rd.ntt/e/brl/result/activities/file/report16/data09E.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

. Utsunomiya and H. Takesue A coherent Ising machine for 2000-node optimization problems Science 354 (6312

https://www.rd.ntt/brl/result/publications/paper_2016.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

. Utsunomiya and H. Takesue "A coherent Ising machine for 2000-node optimization problems" Science 354 (6312

https://www.rd.ntt/e/brl/result/publications/paper_2016.html

Report_16_E.pdf

Cover : Coherent Ising Machine for Combinatorial Optimization Problems Combinatorial optimization

https://www.rd.ntt/e/brl/result/activities/file/report16/Report_16_E.pdf

Microsoft Word - Symposium_Timetable_1012verバス無しotani.docx

) Lecture 3 15:45 Coherent Ising machine for solving complex optimization problems Dr. Hiroki Takesue

https://www.rd.ntt/brl/event/isntt2017/download/Symposium_Timetable_r1.pdf

Photonic Implementation of Reservoir Computing | NTT R&D Website

, K. Aihara, K. Kawarabayashi, K. Inoue, S. Utsunomiya, and H. Takesue, “A Coherent Ising Machine for

https://www.rd.ntt/e/research/JN202206_18595.html

BRLセミナー 講演一覧

of Coherent Ising Machine: Pulse-shape Dynamics in Synchronously Pumped Optical Parametric

https://www.rd.ntt/brl/result/activities/file/report15/data03J.html

Network Design Technologies Supporting the All-Photonics Network | NTT R&D Website

-2795, 2014. [2]Coherent Ising Machine: LASOLV, https://www.rd.ntt/e/ [3]Japan Photonic Network Model

https://www.rd.ntt/e/research/JN20200322_h.html

100,000スピン コヒーレントイジングマシンを実現｜NTT物性科学基礎研究所 | NTT R&D Website

に基づく計算システム「LASOLV」の応用を開拓します。 論文情報 論文タイトル：100,000-spin coherent Ising machine 著者： Toshimori Honjo

https://www.rd.ntt/brl/latesttopics/2021/09/latest_topics_202109301916.html

Report on the NTT R&D Forum — Road to IOWN 2022｜NTT R&D Website

a physical machine. This led to the IOWN initiative's LASOLVTM coherent Ising machine for solving

https://www.rd.ntt/e/forum/2022/keynote_2.html

コヒーレントイジングマシンの可能性を探求し、タイムビン多光子もつれ状態を生成して量子ネットワークへ一歩前進 | NTT R&D Website

in large-scale graphs with a coherent Ising machine,” Sci. Adv., Vol.11, No.7，eads7223, 2025. (2)H

https://www.rd.ntt/research/JN202506_34177.html

untitled

Advanced Science and Technology (RCAST) The University of Tokyo Coherent Ising Machine for Solving Complex

https://www.rd.ntt/brl/event/isntt2017/download/Oral_Program_r2.pdf

最大の願いは「貢献」。年齢を重ねても研究するスピリットを持ち続けていたい | NTT R&D Website

coherent Ising machine,"Science Advances, Vol. 7, No. 40, eabh0952, 2021. (3)Y. B. Zhang, H. Lo, A. Mink, T

https://www.rd.ntt/research/JN202204_17846.html

Heterogeneous Materials and Devices Research Group｜Device Technology Laboratories｜NTT R&D Website

-spin coherent Ising machine ～High-speed solution search for large-scale combinatorial optimization

https://www.rd.ntt/e/dtl/technology/heterogeneous_materials_and_devices_research_group_ntt_device_technology_laboratories_ntt_rd_website.html

Experimental realization of photonic spiking neural network toward a new neuromorphic computing｜NTT Basic Research Laboratories | NTT R&D Website

construct a coherent Ising machine, which is a machine for solving combinatorial optimization problems. We

https://www.rd.ntt/e/brl/latesttopics/2021/04/latest_topics_202104231435.html

長距離光ファイバ共振器を用いて光による大規模人工スピンネットワークの生成に成功｜NTT物性科学基礎研究所 | NTT R&D Website

で盛んになってきました。 中でも、コヒーレントイジングマシン(coherent Ising machine)は、光を用いて実現した人工スピン群により高速にイジングモデルを解く可能性がある計算機として現在

https://www.rd.ntt/brl/latesttopics/2016/04/latest_topics_201604181354.html

論文｜NTT物性科学基礎研究所｜NTT R&D Website

-scale Coherent Ising Machine J. Phys. Soc. Jpn. 88 (6), 061014 (2019). Y. Takeuchi, Y. Matsuzaki, K

https://www.rd.ntt/brl/result/publications/paper_2019.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

-scale Coherent Ising Machine" J. Phys. Soc. Jpn. 88 (6), 061014 (2019). Y. Takeuchi, Y. Matsuzaki, K

https://www.rd.ntt/e/brl/result/publications/paper_2019.html

NTTBrl_honbun_E_260302.indd

allocation. We explore the MIS on large-scale graphs using a coherent Ising machine (CIM), which simulates

https://www.rd.ntt/brl/result/activities/file/annual_report/NTTBrl_E_260310_print.pdf

論文｜NTT物性科学基礎研究所｜NTT R&D Website

independent sets in large-scale graphs with a coherent Ising machine" Sci. Adv. 11 (7), eads7223 (2025). M

https://www.rd.ntt/brl/result/publications/paper_2025.html

Publications | NTT Basic Research Laboratories | NTT R&D Website

independent sets in large-scale graphs with a coherent Ising machine" Sci. Adv. 11 (7), eads7223 (2025). M

https://www.rd.ntt/e/brl/result/publications/paper_2025.html

国際会議招待講演一覧

Time-multiplexed Degenerate Optical Parametric Oscillators for Coherent Ising Machine", SPIE Photonics

https://www.rd.ntt/brl/result/activities/file/report16/data11J.html

List of Invited Talks

Spin Network Based on Time-multiplexed Degenerate Optical Parametric Oscillators for Coherent Ising

https://www.rd.ntt/e/brl/result/activities/file/report16/data10E.html

光を用いたコヒーレントイジングマシンと超伝導量子ビットを用いた 量子アニーリングマシンの計算性能を実験で比較｜NTT物性科学基礎研究所 | NTT R&D Website

を応用することで、イジングモデルの基底状態を高速に探索する新しい手法の研究が様々な種類の物理システムを用いて近年進展しています。 本研究のコヒーレントイジングマシン(coherent Ising

https://www.rd.ntt/brl/latesttopics/2019/05/latest_topics_201905251454.html

Software Innovation for Disaggregated Computing｜NTT R&D Website

researching and developing software that efficiently uses the coherent Ising machine called LASOLVTM (with NTT

https://www.rd.ntt/e/research/JN202012_8919.html

Optical Device Technology for Next-generation Computing Using Light | NTT R&D Website

. These devices enable non-Neumann-type computers such as coherent Ising machines [7] and optical

https://www.rd.ntt/e/research/JN202206_18551.html

NTTBrl__E_h1

Realization of Large-scale Coherent Ising Machine H. Takesue International Conference on BioSensors

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2017_E.pdf

BRL Seminars | Basic Research Laboratories | NTT R&D Website

/02nd Coherent Ising machine and XY machine Dr. Shoko Utsunomiya National Institute of Informatics

https://www.rd.ntt/e/brl/overview/brl-seminar.html

NTTBrl_honbun_E_220301-2.indd

quantum computation. 100,000-spin Coherent Ising Machine Detection of High-frequency Defects in

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2021_E.pdf

Report on the NTT R&D Forum 2018 (Autumn) | NTT R&D Website

(Basic research: B06) Here present the Coherent Ising Machine 'LASOLV' to solve difficult problems using

https://www.rd.ntt/e/forum/forum2018_autumn.html

Updates | NTT R&D Website

Contribute to People's Well-being 02/16/2026 Coherent Optical-amplifier-repeater Transmission Will Enable

https://www.rd.ntt/e/update_information/

A Digital World of Humans and Society-Digital Twin Computing | NTT R&D Website

of technology supporting such large-scale computation is the LASOLVTM coherent Ising machine now

https://www.rd.ntt/e/research/JN20200117_h.html

NTT Research 2.0: シリコンバレーの熱をNTT Groupへ | NTT R&D Website

として迎えています。 PHI Lab. 新所長からの挨拶 PHI Lab.ではこれまでコヒーレントイジングマシン（CIM：Coherent Ising Machine）＊1の研究基盤をつくるとともに、次世

https://www.rd.ntt/research/JN202608_40069.html

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Ising Machine for Solving Complex Optimization Problems Dr. Hiroki Takesue NTT Basic Research

https://www.rd.ntt/brl/event/isntt2017/download/Complete_Program_r1.pdf

BRLセミナー｜物性科学基礎研究所｜NTT R&D Website

Tokyo 2017年4月11日 Serial Number 121 ／ FY17/01st Coherent Ising machine and XY machine SpeakerDr. Shoko

https://www.rd.ntt/brl/overview/brl-seminar.html

Japanese publications

都新宿区)(2019年3月21日)(招待講演). 本庄利守, 稲垣卓弘, 稲葉謙介, 生田拓也, 武居弘樹, 「Coherent Ising machineにおけるFPGA測定フィードバックシス

https://www.rd.ntt/brl/people/htakesue/papersj.html

「光発振器ネットワーク」をさまざまな課題に応用し、情報処理システムの未来へ新たな一歩を踏み出す | NTT R&D Website

ングモデルを表現することで、コヒーレントイジングマシン（CIM：Coherent Ising Machine）と呼ばれる新しい仕組みの情報処理システムが実現しました。この計算機では、縮退光パラメトリック発振

https://www.rd.ntt/research/JN202306_22121.html

Research Activities

, each in a single step. (a) Scanning electron micrograph of the two-qubit device. (b) Coherent

https://www.rd.ntt/e/brl/result/activities/file/report09/BRLreport_2009E.pdf

Annual_report_2020_E.pdf

Coherent Ising Machine Research SubjectResearch Subject Research Subject Research Subject Quantum and Nano

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2020_E.pdf

NTTBrl_honbun_E_250225.indd

Band Coherent Ising Machine Research on Functional Materials for Green Innovation Research Subject

https://www.rd.ntt/brl/result/activities/file/annual_report/NTTBrl_E_250321_print.pdf

山本 喜久｜NTT R&D Website

. Wang, A. Marandi, K. Wen, R. L. Byer, and Y. Yamamoto, "Coherent Ising machine based on degenerate

https://www.rd.ntt/organization/authority/008.html

Annual_report_2023_E.pdf

Ising Machine Research Subject Research Subject Research Subject Quantum Optical Physics Research Group

https://www.rd.ntt/brl/brl/result/activities/file/annual_report/Annual_report_2023_E.pdf

Annual_report_2023_E.pdf

Ising Machine Research Subject Research Subject Research Subject Quantum Optical Physics Research Group

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2023_E.pdf

NTT R&D FORUM 2025 Event Report | NTT R&D Website

verbalization of brain activity (mind captioning), machine unlearning that enables the deletion of specific

https://www.rd.ntt/e/forum/2025/

NTTBrl_honbun_E_230228_final.indd

Telecommunication Band Coherent Ising Machine Research SubjectResearch Subject Research Subject Research Subject

https://www.rd.ntt/brl/brl/result/activities/file/annual_report/Annual_report_2022_E.pdf

NTTBrl_honbun_E_230228_final.indd

Telecommunication Band Coherent Ising Machine Research SubjectResearch Subject Research Subject Research Subject

https://www.rd.ntt/e/brl/result/activities/file/annual_report/Annual_report_2022_E.pdf

Report_16_J.pdf

https://www.rd.ntt/brl/result/activities/file/report16/Report_16_J.pdf

Keynote Speech 2｜Report on the NTT R&D Forum 2021｜NTT R&D Website

advancement in IOWN computers. We also believe that the coherent Ising machine LASOLV, which is being

https://www.rd.ntt/e/forum/2021/keynote_2.html

Report_15_J.pdf

https://www.rd.ntt/brl/result/activities/file/report15/Report_15_J.pdf