Research Paper and Conference
Paper
Geometric Quantum Physics Informed Neural Network
Wai-Hong Tam,
Reza Safari,
Hiromichi Matsuyama
Quantum hardware noise learning via differentiable Kraus representation on tensor networks
Ryo Sakai,
Yu Yamashiro
Tensor Network Generator-Enhanced Optimization for Traveling Salesman Problem
Ryo Sakai,
Chen-Yu Liu
Simulated Annealing for Quadratic and Higher-Order Unconstrained Integer Optimization
Kohei Suzuki
Extended Factorization Machine Annealing for Rapid Discovery of Transparent Conducting Materials
Daisuke Makino, Tatsuya Goto,
Yoshinori Suga
Quantum Annealing with Qubit-Resonator Systems for Simultaneous Optimization of Binary and Continuous Variables
Seiya Endo, Shohei Kawakatsu,
Hiromichi Matsuyama, Kohei Suzuki,
Yuichiro Matsuzaki
Quantum-Enhanced Parameter-Efficient Learning for Typhoon Trajectory Forecasting
Chen-Yu Liu,
Kuan-Cheng Chen,
Yi-Chien Chen,
Samuel Yen-Chi Chen,
Wei-Hao Huang,
Wei-Jia Huang,
Yen-Jui Chang
Differentiable Quantum Architecture Search in Quantum-Enhanced Neural Network Parameter Generation
Samuel Yen-Chi Chen,
Chen-Yu Liu,
Kuan-Cheng Chen,
Wei-Jia Huang,
Yen-Jui Chang,
Wei-Hao Huang
Learning to Learn with Quantum Optimization via Quantum Neural Networks
Kuan-Cheng Chen,
Hiromichi Matsuyama, Yu Yamashiro
Transferring linearly fixed QAOA angles: performance and real device results
Ryo Sakai, Hiromichi Matsuyama, Wai-Hong Tam, Yu Yamashiro
Sampling-based Quantum Optimization Algorithm with Quantum Relaxation
Hiromichi Matsuyama, Yu Yamashiro
Enhancing NDAR with Delay-Gate-Induced Amplitude Damping
Wai-Hong Tam, Hiromichi Matsuyama, Ryo Sakai, Yu Yamashiro
Solving Capacitated Vehicle Routing Problem with Quantum Alternating Operator Ansatz and Column Generation
Wei-hao Huang, Hiromichi Matsuyama, Yu Yamashiro
Spin-S Ising Models with Multi-Spin Interactions on the One-Dimensional Chain and Two-Dimensional Square Lattice
Kohei Suzuki
Quantum Local Search for Traveling Salesman Problem with Path-Slicing Strategy
Chen-Yu Liu,
Hiromichi Matsuyama,
Wei-hao Huang,
Yu Yamashiro
Efficient Internal Strategies in Quantum Relaxation based Branch-and-Bound
Hiromichi Matsuyama, Wei-hao Haung, Kohji Nishimura,and Yu Yamashiro
Linearly simplified QAOA parameters and transferability
Ryo Sakai,
Hiromichi Matsuyama,
Wai-Hong Tam,
Yu Yamashiro,
and Keisuke Fujii
Tensor Renormalization Group for fermions
Shinichiro Akiyama,
Yannick Meurice,
and
Ryo Sakai
Accepted for publication in IOP topical review
Symmetry Breaking in an Extended O(2) Model
Leon Hostetler,
Ryo Sakai,
Jin Zhang,
Alexei Bazavov,
and Yannick Meurice
Tensor network representation of non-abelian gauge theory coupled to reduced staggered fermions
Muhammad Asaduzzaman,
Simon Catterall,
Yannick Meurice,
Ryo Sakai,
and Goksu Can Toga
Two-parameter counter-diabatic driving in quantum annealing
Luise Prielinger,
Andreas Hartmann,
Yu Yamashiro,
Kohji Nishimura,
Wolfgang Lechner,
and Hidetoshi Nishimori
Mean-Field Solution of the Weak-Strong Cluster Problem for Quantum Annealing with Stoquastic and Non-Stoquastic Catalysts
Kabuki Takada,
Yu Yamashiro,
and Hidetoshi Nishimori
Griffiths-McCoy singularity on the diluted Chimera graph: Monte Carlo simulations and experiments on the quantum hardware
Kohji Nishimura,
Hidetoshi Nishimori,
and Helmut G. Katzgraber
Dynamics of reverse annealing for the fully-connected p-spin model
Yu Yamashiro,
Masaki Ohkuwa,
Hidetoshi Nishimori,
and Daniel A. Lidar
Message-passing algorithm of quantum annealing with nonstoquastic Hamiltonian
Masayuki Ohzeki
Geometric Quantum Physics Informed Neural Network
Wai-Hong Tam(JIJ) · Reza Safari · Hiromichi Matsuyama(JIJ)
ARXIV:2605.02352
Quantum hardware noise learning via differentiable Kraus representation on tensor networks
Ryo Sakai(JIJ) · Yu Yamashiro(JIJ)
ARXIV:2604.20804
Tensor Network Generator-Enhanced Optimization for Traveling Salesman Problem
Ryo Sakai(JIJ) · Chen-Yu Liu(JIJ)
ARXIV:2602.20175
Qamomile: A Cross-SDK Bridge for Quantum Optimization
Wei-Hao Huang(JIJ) · Hiromichi Matsuyama(JIJ) · Wai-Hong Tam(JIJ) · Keisuke Sato · Yu Yamashiro(JIJ)
IEEE QCE 2025 · POSTER · NEW MEXICO
Solving Capacitated Vehicle Routing Problem with Quantum Alternating Operator Ansatz and Column Generation
Wei-hao Huang(JIJ) · Hiromichi Matsuyama(JIJ) · Yu Yamashiro(JIJ)
arXiv:2503.17051
Sampling-based Quantum Optimization Algorithm with Quantum Relaxation
Hiromichi Matsuyama(JIJ) · Yu Yamashiro(JIJ)
arXiv:2504.12629
Learning to Learn with Quantum Optimization via Quantum Neural Networks
Kuan-Cheng Chen · Hiromichi Matsuyama(JIJ) · Yu Yamashiro(JIJ)
arXiv:2505.00561
Differentiable Quantum Architecture Search in Quantum-Enhanced Neural Network Parameter Generation
Samuel Yen-Chi Chen · Chen-Yu Liu(JIJ) · Kuan-Cheng Chen · Wei-Jia Huang · Yen-Jui Chang · Wei-Hao Huang(JIJ)
arXiv:2505.09653
Quantum-Enhanced Parameter-Efficient Learning for Typhoon Trajectory Forecasting
Chen-Yu Liu(JIJ) · Kuan-Cheng Chen · Yi-Chien Chen · Samuel Yen-Chi Chen · Wei-Hao Huang(JIJ) · Wei-Jia Huang · Yen-Jui Chang
arXiv:2505.09395
Spin-S Ising Models with Multi-Spin Interactions on the One-Dimensional Chain and Two-Dimensional Square Lattice
Kohei Suzuki(JIJ)
PHYS. REV. E
Enhancing NDAR with Delay-Gate-Induced Amplitude Damping
Wai-Hong Tam(JIJ) · Hiromichi Matsuyama(JIJ) · Ryo Sakai(JIJ) · Yu Yamashiro(JIJ)
ARXIV
Transferring linearly fixed QAOA angles: performance and real device results
Ryo Sakai(JIJ) · Hiromichi Matsuyama(JIJ) · Wai-Hong Tam(JIJ) · Yu Yamashiro(JIJ)
ARXIV
Quantum Annealing with Qubit-Resonator Systems for Simultaneous Optimization of Binary and Continuous Variables
Seiya Endo · Shohei Kawakatsu · Hiromichi Matsuyama(JIJ) · Kohei Suzuki(JIJ) · Yuichiro Matsuzaki
ARXIV
Extended Factorization Machine Annealing for Rapid Discovery of Transparent Conducting Materials
Daisuke Makino(JIJ) · Tatsuya Goto(JIJ) · Yoshinori Suga
ARXIV
Simulated Annealing for Quadratic and Higher-Order Unconstrained Integer Optimization
Kohei Suzuki(JIJ)
ARXIV
International Conference
Quantum hardware noise learning via differentiable Kraus representation on tensor networks
Ryo Sakai(JIJ) · Yu Yamashiro(JIJ)
2026 IEEE International Conference on Quantum Computing and Engineering (QCE) · Colorado, United States（Oral）, 2026/6/15-19
Quantum Kernel Feature Selection via Quadratic Unconstrained Binary Optimization
Daniel Fadi Feghali · Hasan Almatrouk · Kin Tung Michael Ho · Kuan-Cheng Chen · Lily Lee · Jen-Yu Chang · Po-Heng Lee
2026 IEEE International Conference on Quantum Computing and Engineering (QCE) · Colorado, United States（Oral）, 2026/6/15-19
Optimizing Optimizations, Declaratively: Optimizing the Higher-Order Functions in Mathematical Optimization with egglog
Hiromi Ishii
EGRAPHS 2026 · ORAL · COLORADO
Solving Capacitated Vehicle Routing Problem with Quantum Alternating Operator Ansatz and Column Generation
Wei-hao Huang(JIJ) · Hiromichi Matsuyama(JIJ) · Yu Yamashiro(JIJ)
QCNC 2026 · ORAL · KOBE
Sampling-based Quantum Optimization Algorithm with Quantum Relaxation
Hiromichi Matsuyama(JIJ) · Yu Yamashiro(JIJ)
2025 IEEE International Conference on Quantum Computing and Engineering (QCE) · New Mexico, United States（Oral）2025/8/31-9/5
Learning to Learn with Quantum Optimization via Quantum Neural Networks
Kuan-Cheng Chen · Hiromichi Matsuyama(JIJ) · Yu Yamashiro(JIJ)
2025 IEEE International Conference on Quantum Computing and Engineering (QCE) · New Mexico, United States（Oral）2025/8/31-9/5
Differentiable Quantum Architecture Search in Quantum-Enhanced Neural Network Parameter Generation
Samuel Yen-Chi Chen · Chen-Yu Liu(JIJ) · Kuan-Cheng Chen · Wei-Jia Huang · Yen-Jui Chang · Wei-Hao Huang(JIJ)
Proceedings | arXiv:2505.09653 · 2025 IEEE International Conference on Quantum Computing and Engineering (QCE)
Quantum-Enhanced Parameter-Efficient Learning for Typhoon Trajectory Forecasting
Chen-Yu Liu(JIJ) · Kuan-Cheng Chen · Samuel Yen-Chi Chen et al.
IEEE QCE 2025 · ORAL · NEW MEXICO
Optimizing Optimizations: Case Study on Detecting Specific Types of Mathematical Optimization Constraints with E-Graphs in JijModeling
Hiromi Ishii
EGRAPHS 2025 · Seoul, South Korea（Oral）2025/6/16-20
Frame Generation in Hilbert Space: Generative Interpolation of Measurement Data for Quantum Parameter Adaptation
Chen-Yu Liu(JIJ) · Kuan-Cheng Chen · Samuel Yen-Chi Chen · Wei-hao Huang(JIJ) · Wei-Jia Huang · Yen Jui Chang
ICLR 2025 DeLTa Workshop · Singapore（Poster）2025/4/28
Quantum Local Search for Traveling Salesman Problem with Path-Slicing Strategy
Chen-Yu Liu(JIJ) · Hiromichi Matsuyama(JIJ) · Wei-hao Huang(JIJ) · Yu Yamashiro(JIJ)
2025 International Conference on Quantum Communications, Networking, and Computing (QCNC) · Nara,Japan（Oral）2025/3/31-4/2
Quantum Kernel Feature Selection via Quadratic Unconstrained Binary Optimization
Daniel Fadi Feghali, Hasan Almatrouk, Kin Tung Michael Ho,
Kuan-Cheng Chen
, Lily Lee, Jen-Yu Chang, Po-Heng Lee
Colorado, United States（Oral）, 2026/6/15-19
Quantum hardware noise learning via differentiable Kraus representation on tensor networks
Ryo Sakai, Yu Yamashiro
Colorado, United States（Oral）, 2026/6/15-19
Optimizing Optimizations, Declaratively: Optimizing the Higher-Order Functions in Mathematical Optimization with egglog
Hiromi Ishii
Colorado, United States（Oral）, 2026/6/15-19
Solving Capacitated Vehicle Routing Problem with Quantum Alternating Operator Ansatz and Column Generation
Wei-hao Huang, Hiromichi Matsuyama, Yu Yamashiro
Kobe,Japan（Oral）2026/4/6-8
Quantum-Enhanced Parameter-Efficient Learning for Typhoon Trajectory Forecasting
Chen-Yu Liu,
Kuan-Cheng Chen,
Yi-Chien Chen,
Samuel Yen-Chi Chen,
Wei-Hao Huang,
Wei-Jia Huang,
Yen-Jui Chang
New Mexico, United States（Oral）2025/8/31-9/5
Differentiable Quantum Architecture Search in Quantum-Enhanced Neural Network Parameter Generation
Samuel Yen-Chi Chen,
Chen-Yu Liu,
Kuan-Cheng Chen,
Wei-Jia Huang,
Yen-Jui Chang,
Wei-Hao Huang
Qamomile: A Cross-SDK Bridge for Quantum Optimization
Wei-Hao Huang,
Hiromichi Matsuyama,
Wai-Hong Tam,
Keisuke Sato,
Yu Yamashiro
New Mexico, United States（Poster）2025/8/31-9/5
Learning to Learn with Quantum Optimization via Quantum Neural Networks
Kuan-Cheng Chen,
Hiromichi Matsuyama, Yu Yamashiro
New Mexico, United States（Oral）2025/8/31-9/5
Sampling-based Quantum Optimization Algorithm with Quantum Relaxation
Hiromichi Matsuyama, Yu Yamashiro
New Mexico, United States（Oral）2025/8/31-9/5
Optimizing Optimizations: Case Study on Detecting Specific Types of Mathematical Optimization Constraints with E-Graphs in JijModeling
Hiromi Ishii
Seoul, South Korea（Oral）2025/6/16-20
Frame Generation in Hilbert Space: Generative Interpolation of Measurement Data for Quantum Parameter Adaptation
Chen-Yu Liu,
Kuan-Cheng Chen,
Samuel Yen-Chi Chen,
Wei-hao Haung,
Wei-Jia Huang, Yen Jui Chang
Singapore（Poster）2025/4/28
Quantum Local Search for Traveling Salesman Problem with Path-Slicing Strategy
Chen-Yu Liu,
Hiromichi Matsuyama,
Wei-hao Huang,
Yu Yamashiro
Nara,Japan（Oral）2025/3/31-4/2
2025 International Conference on Quantum Communications, Networking, and Computing (QCNC)
Internal Conference
Geometric Quantum Physics Informed Neural Network
Wai-Hong Tam,
Reza Safari,
Hiromichi Matsuyama
東京大学 伊藤国際学術研究センター, 2026/6/2-3
テンソルネットワーク Born マシンを用いた組合せ最適化問題へのアプローチ：巡回セールスマン問題への適用例と多目的最適化問題への展望
坂井 涼
Tokyo, 2026/5/8
数理最適化向け埋め込み型領域特化言語 JijModeling 2 におけるプログラミング言語理論の応用について
石井 大海、清水 太朗、寺村 俊紀
レクザムホール, 2026/03/09
在来線乗務員運用計画への 数理最適化の適用と検証
北村 望 (東海旅客鉄道株式会社)、齋藤 竜平 (東海旅客鉄道株式会社)、
宮脇 悠
麗澤大学(校舎さつき), 2026/3/4〜6
数理最適化の実用化を支援するOMMXのデータ形式標準化の取り組み
寺村 俊紀、清水 太朗、石井 大海
大阪国際会議場, 2025/5/30
数理最適化モデル記述ツール JijModeling のご紹介
石井 大海、清水 太朗、寺村 俊紀
大阪国際会議場, 2025/5/30
2026-09
2026年電子情報通信学会ソサイエティ大会
量子ソフトウェア研究の最先端
松山洋道(JIJ）
2026-06
Quantinuum June 2026 Symposium · TOKYO
Geometric Quantum Physics Informed Neural Network
Wai-Hong Tam(JIJ) · Reza Safari · Hiromichi Matsuyama(JIJ)
2026-05
第3回 Quantum CAE 研究会 · TOKYO
テンソルネットワーク Born マシンを用いた組合せ最適化問題へのアプローチ
坂井 涼(JIJ)
2026-03
日本オペレーションズ・リサーチ学会 2026年春季大会 · 麗澤大学(校舎さつき), 2026/3/4〜6
在来線乗務員運用計画への 数理最適化の適用と検証
北村 望 (東海旅客鉄道株式会社) · 齋藤 竜平 (東海旅客鉄道株式会社) · 宮脇 悠(JIJ)
2026-03
PPL 2026 · KAGAWA
数理最適化向け埋め込み型領域特化言語 JijModeling 2 におけるプログラミング言語理論の応用について
石井 大海(JIJ) · 清水 太朗(JIJ) · 寺村 俊紀(JIJ)
2025-05
2025年度人工知能学会全国大会（第39回） · 大阪国際会議場, 2025/5/30
数理最適化モデル記述ツール JijModeling のご紹介
石井 大海(JIJ) · 清水 太朗(JIJ) · 寺村 俊紀(JIJ)
2025-05
2025年度人工知能学会全国大会（第39回） · 大阪国際会議場, 2025/5/30
数理最適化の実用化を支援するOMMXのデータ形式標準化の取り組み
寺村 俊紀(JIJ) · 清水 太朗(JIJ) · 石井 大海(JIJ)
2024-09
日本物理学会第７９回年次大会 · 北海道大学 札幌キャンパス, 2024/9/19
一次元および二次元系における高次相互作用を持つスピン-Sイジングモデルの性質
鈴木浩平(JIJ)
2024-03
第11回量子ソフトウェア研究発表会 · 名古屋, 2024/3/28
線形化した QAOA パラメータと問題インスタンス間の転送可能性
坂井涼(JIJ) · 松山洋道(JIJ) · 譚偉康 · 山城悠(JIJ) · 藤井啓祐（大阪大学/理化学研究所）
2024-03
第11回量子ソフトウェア研究発表会 · 名古屋, 2024/3/29
0-1整数計画問題に対する量子緩和を用いた分枝限定法フレームワーク
松山洋道(JIJ) · 黄威豪(JIJ) · 西村光嗣(JIJ) · 山城悠(JIJ)
2022-03
第5回量子ソフトウェア研究発表会 · Online, 2022/3/24
相乗りを考慮したデマンド交通サービスの配車計画問題への量子アニーリングの適用
篠原秀人(JIJ) · 山城悠(JIJ) · 齋藤和広（KDDI総合研究所）
2022-03
Abstract · Online, 2022/3/24
量子・イジングマシンの社会実装に向けたソフトウェア・研究開発
西村光嗣(JIJ)
2022-03
Abstract · Online, 2022/3/24
株式会社Jijの取り組む最適化技術の社会実装
西村光嗣(JIJ)
2021-03
第2回量子ソフトウェア研究発表会 · Online, 2021/3/29
シミュレーテッドアニーリングの並列化手法の性能向上
榎本観 · 西村光嗣(JIJ) · 山城悠(JIJ)
2021-03
第2回量子ソフトウェア研究発表会 · Online, 2021/3/29
タブーとペナルティーを用いたアニーリングアルゴリズム
篠原秀人(JIJ) · 西村光嗣(JIJ) · 山城悠(JIJ)
2021-03
第2回量子ソフトウェア研究発表会 · Online, 2021/3/29
家庭用燃料電池発電計画への量子アニーリングの応用
田中洋一（東邦ガス株式会社） · 山城悠(JIJ) · 篠原秀人(JIJ) · 瑞慶覧長空（東邦ガス株式会社）
Invited Talk
行列積密度演算子法による大規模量子回路のノイズシミュレーション
Ryo Sakai
Tsukuba, Ibaraki 2025/12/19
G-QuATaaaalk
2026-09
Q2B Copenhagen 2026
Benchmarking Hybrid Approaches to the Unit Commitment Problem
Ross Grassie(JIJ),Claudia Perry
2026-04
第1回 ABCI-Q グランドチャレンジ報告会 · ONLINE
行列積密度演算子法による大規模量子回路のノイズシミュレーション
Ryo Sakai(JIJ)
2025-12
G-QuATaaaalk · TSUKUBA
行列積密度演算子法による大規模量子回路のノイズシミュレーション
Ryo Sakai(JIJ)
2024-11
TENSOR NETWORK 2024 · Kanazawa, 2024/11/15-17
Tensor network representation of non-abelian gauge theory coupled to reduced staggered fermions
Ryo Sakai(JIJ)
2023-02
量子アニーリング研究会「量子アニーリング及び関連技術の基礎から社会実装まで」 · Tokyo, 2023/2/21
量子・イジングマシンの社会実装に向けたソフトウェア・研究開発
Kohji Nishimura(JIJ)
2020-11
Quantum Computational Materials Science Roundtable · Online, 2020/11/2
第6回: 物質科学に量子アニーリングマシンはどう使えるのか？
Kohji Nishimura(JIJ)
Invited Talk
行列積密度演算子法による大規模量子回路のノイズシミュレーション
Ryo Sakai
Tsukuba, Ibaraki 2025/12/19
G-QuATaaaalk
