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Tokunaga Yuuki

Faculty of Information Science and Technology　Electronics for Informatics　Advanced ElectronicsProfessor

Researcher basic information

■ Degree
  • Doctor of Science, The University of Osaka
■ URL
researchmap URLホームページURL■ Various IDs
J-Global ID■ Research Keywords and Fields
Research Keyword
  • 量子コンピュータ、量子光学

Career

■ Career
Career
  • Oct. 2025 - Present
    Hokkaido University, 大学院情報科学研究院, 教授
  • 2021 - Sep. 2025
    NTT Corporation, Computer & Data Science Research Laboratories, Distinguished Researcher
  • 2012 - 2021
    NTT Corporation, Secure Platform Laboratories, Distinguished Researcher,
  • 2001 - 2012
    NTT Corporation, Information Sharing Platform Laboratories, Researcher
Educational Background
  • 2007, The University of Osaka, Graduate School of Engineering Science, 物性物理専攻. 博士課程 修了
  • 2001, The University of Tokyo, Graduate School of Science, 情報科学専攻 修士課程 修了
  • 1999, Kyoto University, 総合人間学部, 基礎科学科 数理情報論専攻 卒業
Committee Memberships
  • Apr. 2026 - Present
    情報処理学会 量子ソフトウェア研究会, 幹事
  • 2023 - Present
    量子I C Tフォーラム 委員
  • 2022 - Present
    Journal of Physical Society of Japan 編集委員
  • 2019 - Present
    情報処理推進機構 未踏ターゲット事業 プロジェクトマネージャー
  • 2019 - 2025
    JST さきがけ 「量子情報処理」領域アドバイザ
  • 2022 - 2024
    電子情報通信学会 量子情報技術研究会 幹事
  • 2021 - 2024
    情報処理学会 量子ソフトウェア研究会 幹事
  • 2020 - 2022
    日本物理学会誌 編集委員

Research activity information

■ Awards
  • 2025, 電子情報通信学会, エレクトロニクスソサイエティ活動功労賞
  • 2024, 日本産業大賞 内閣総理大臣賞
    富士通株式会社、理化学研究所、産業技術総合研究所、情報通信研究機構、大阪大学、NTTが共同受賞
  • 2009, 井上科学振興財団, 井上研究奨励賞
■ Papers
  • Network-Based Quantum Computing: an Efficient Design Framework for Many-small-node Distributed Fault-Tolerant Quantum Computing
    Soshun Naito; Yasunari Suzuki; Yuuki Tokunaga
    IEEE Transactions on Quantum Engineering, 4, 1, 33, Institute of Electrical and Electronics Engineers (IEEE), Aug. 2026, [Peer-reviewed], [Last author], [International Magazine]
    Scientific journal
  • Efficient and high-performance routing of lattice-surgery paths on three-dimensional lattice
    Kou Hamada; Yasunari Suzuki; Yuuki Tokunaga
    Quantum, 10, 2061, 2061, Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften, 13 Apr. 2026, [Peer-reviewed], [Last author, Corresponding author], [International Magazine]
    Scientific journal, Encoding logical qubits with surface codes and performing multi-qubit logical operations with lattice surgery is one of the most promising approaches to demonstrate fault-tolerant quantum computing. Thus, a method to efficiently schedule a sequence of lattice-surgery operations is vital for high-performance fault-tolerant quantum computing. A possible strategy to improve the throughput of lattice-surgery operations is splitting a large instruction into several small instructions, such as Bell state preparation and measurements, and executing a part of them in advance. However, scheduling methods to fully utilize this idea have yet to be explored. In this paper, we propose a fast and high-performance scheduling algorithm for lattice-surgery instructions leveraging this strategy. We achieved this by converting the scheduling problem of lattice-surgery instructions to a graph problem of embedding 3D paths into a 3D lattice, which enables us to explore efficient scheduling by solving path search problems in the 3D lattice. Based on this reduction, we propose a method to solve the path-finding problems, the look-ahead Dijkstra projection. We numerically show that this method reduced the execution time of benchmark programs generated from quantum phase estimation algorithms by 3.8 times compared with a naive method based on greedy algorithms. Our study establishes the relation between the lattice-surgery scheduling and graph search problems, which leads to further theoretical analysis on compiler optimization of fault-tolerant quantum computing.
  • Logical entanglement distribution between distant two-dimensional array qubits
    Yuya Maeda; Yasunari Suzuki; Toshiki Kobayashi; Takashi Yamamoto; Yuuki Tokunaga; Keisuke Fujii
    Physical Review Research, 8, 013282, American Physical Society (APS), 12 Mar. 2026, [Peer-reviewed], [International Magazine]
    Scientific journal, Sharing logical entangled pairs between distant quantum nodes is a key process to achieve fault-tolerant quantum computation and communication. However, there is a gap between current experimental specifications and theoretical requirements for sharing logical entangled states while improving experimental techniques. Here, we propose an efficient logical entanglement distribution protocol based on surface codes for two distant two-dimensional qubit array with nearest-neighbor interaction. A notable feature of our protocol is that it allows postselection according to error estimations, which provides the tunability between the infidelity of logical entanglements and the success probability of the protocol. With this feature, the fidelity of encoded logical entangled states can be improved by sacrificing success rates. We numerically evaluated the performance of our protocol and the trade-off relationship, and found that our protocol enables us to prepare logical entangled states while improving fidelity in feasible experimental parameters. We also discuss a possible physical implementation using neutral atom arrays to show the feasibility of our protocol.
  • Addressing requirements for crosstalk-free quantum-gate operation in many-body nanofiber cavity QED systems
    Tim Keller; Seigo Kikura; Rui Asaoka; Yasunari Suzuki; Yuuki Tokunaga; Takao Aoki
    Journal of the Optical Society of America B, 43, 2, 351, 351, Optica Publishing Group, 29 Jan. 2026, [Peer-reviewed], [International Magazine]
    Scientific journal, A distributed network architecture in which flying photons connect individual modules containing stationary atomic qubits is a promising approach for scaling up neutral-atom-based quantum-computing platforms. We consider an all-fiber-based platform consisting of nanofiber cavity QED systems interconnected via conventional optical fibers. Each nanofiber cavity is strongly coupled to multiple atoms through its evanescent field, and atom pairs within one cavity (local) or two distant cavities (remote) are addressed for performing photon-mediated quantum logic gates on them by controlling the effective light–matter coupling via local AC Stark shifts and atom-fiber distance. We numerically evaluate the required parameters for achieving nearly crosstalk-free gate operation using these targeting methods by calculating average gate fidelities, success probabilities, and Pauli error rates for both local and remote controlled- Z gates. For the case of perfect addressing, we also analytically determine the theoretical optimum gate performance as limited by cavity reflectivity, cooperativity, and qubit level-splitting.
  • Unitary-transformed projective squeezing: Applications for circuit knitting and state preparation of non-Gaussian states
    Keitaro Anai; Yasunari Suzuki; Yuuki Tokunaga; Yuichiro Matsuzaki; Shuntaro Takeda; Suguru Endo
    Physical Review Research, 7, 043343, American Physical Society (APS), 29 Dec. 2025, [Peer-reviewed], [International Magazine]
    Scientific journal, Continuous-variable (CV) quantum computing is a promising candidate for quantum computation because it can, even with one mode, utilize infinite-dimensional Hilbert spaces and can efficiently handle continuous values. Although photonic platforms have been considered as a leading platform for CV computation, hybrid systems that use both qubits and bosonic modes, e.g., superconducting hardware, have shown significant advances because they can prepare non-Gaussian states by utilizing the nonlinear interaction between the qubits and the bosonic modes. However, the size of hybrid hardware is currently restricted. Moreover, the fidelity of the non-Gaussian state is also restricted. This work extends the projective squeezing method to establish a formalism for projecting quantum states onto the states that are unitary-transformed from the squeezed vacuum at the expense of the sampling cost. Based on this formalism, we propose methods for simulating larger quantum devices and projecting states onto the cubic phase state, a typical non-Gaussian state, with a higher squeezing level and higher nonlinearity. To make implementation practical, we can, by leveraging the interactions in hybrid systems of qubits and bosonic modes, apply the smeared projector by using either the linear-combination-of-unitaries or virtual quantum error detection algorithms. We numerically verify the performance of our methods and show that projection can suppress the effect of photon-loss errors.
  • Density matrix representation of hybrid tensor networks for noisy quantum devices
    Hiroyuki Harada; Yasunari Suzuki; Bo Yang; Yuuki Tokunaga; Suguru Endo
    QUANTUM, 9, 07 Aug. 2025, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • Quantum error mitigation for rotation-symmetric bosonic codes with symmetry expansion
    Suguru Endo; Yasunari Suzuki; Kento Tsubouchi; Rui Asaoka; Kaoru Yamamoto; Yuichiro Matsuzaki; Yuuki Tokunaga
    PHYSICAL REVIEW A, 111, 6, 02 Jun. 2025, [Peer-reviewed], [Last author], [International Magazine]
    English, Scientific journal
  • Resource-efficient generalized quantum subspace expansion
    Bo Yang; Nobuyuki Yoshioka; Hiroyuki Harada; Shigeo Hakkaku; Yuuki Tokunaga; Hideaki Hakoshima; Kaoru Yamamoto; Suguru Endo
    PHYSICAL REVIEW APPLIED, 23, 5, 08 May 2025, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • High-purity single-photon generation based on cavity QED
    Seigo Kikura; Rui Asaoka; Masato Koashi; Yuuki Tokunaga
    PHYSICAL REVIEW RESEARCH, 7, 1, 07 Mar. 2025, [Peer-reviewed], [Last author], [International Magazine]
    English, Scientific journal
  • Optimal cavity design for minimizing errors in cavity-QED-based atom-photon entangling gates with finite temporal duration
    Takeru Utsugi; Rui Asaoka; Yuuki Tokunaga; Takao Aoki
    PHYSICAL REVIEW A, 111, 1, 23 Jan. 2025, [Peer-reviewed], [International Magazine]
    English, Scientific journal
  • LSQCA: Resource-Efficient Load/Store Architecture for Limited-Scale Fault-Tolerant Quantum Computing
    Takumi Kobori; Yasunari Suzuki; Yosuke Ueno; Teruo Tanimoto; Synge Todo; Yuuki Tokunaga
    2025 IEEE INTERNATIONAL SYMPOSIUM ON HIGH PERFORMANCE COMPUTER ARCHITECTURE, HPCA, 304, 320, 2025, [Peer-reviewed], [Last author], [International Magazine]
    English, International conference proceedings
  • Efficient and high-performance routing of lattice-surgery paths on three-dimensional
    Kou Hamada; Yasunari Suzuki; Yuuki Tokunaga
    Quantum Computing Theory in Practice conference (QCTiP), Apr. 2024, [Peer-reviewed], [Last author]
    Encoding logical qubits with surface codes and performing multi-qubit logical
    operations with lattice surgery is one of the most promising approaches to
    demonstrate fault-tolerant quantum computing. Thus, a method to efficiently
    schedule a sequence of lattice-surgery operations is vital for high-performance
    fault-tolerant quantum computing. A possible strategy to improve the throughput
    of lattice-surgery operations is splitting a large instruction into several
    small instructions such as Bell state preparation and measurements and
    executing a part of them in advance. However, scheduling methods to fully
    utilize this idea have yet to be explored. In this paper, we propose a fast and
    high-performance scheduling algorithm for lattice-surgery instructions
    leveraging this strategy. We achieved this by converting the scheduling problem
    of lattice-surgery instructions to a graph problem of embedding 3D paths into a
    3D lattice, which enables us to explore efficient scheduling by solving path
    search problems in the 3D lattice. Based on this reduction, we propose a method
    to solve the path-finding problems, Dijkstra projection. We numerically show
    that this method reduced the execution time of benchmark programs generated
    from quantum phase estimation algorithms by 2.7 times compared with a naive
    method based on greedy algorithms. Our study establishes the relation between
    the lattice-surgery scheduling and graph search problems, which leads to
    further theoretical analysis on compiler optimization of fault-tolerant quantum
    computing.
  • Speed Limit of Efficient Cavity-Mediated Adiabatic Transfer
    Akinori Suenaga; Takeru Utsugi; Rui Asaoka; Yuuki Tokunaga; Rina Kanamoto; Takao Aoki
    JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 93, 4, 27 Mar. 2024
    English, Scientific journal
  • Quantum Circuit Fragments: Efficient and verifiable format for quantum circuits
    Rei Tokami; Yasunari Suzuki; Yuuki Tokunaga
    2024 IEEE INTERNATIONAL CONFERENCE ON QUANTUM COMPUTING AND ENGINEERING, QCE, VOL 2, 388, 389, 2024
    English, International conference proceedings
  • Virtual quantum error detection
    Kento Tsubouchi; Yasunari Suzuki; Yuuki Tokunaga; Nobuyuki Yoshioka; Suguru Endo
    PHYSICAL REVIEW A, 108, 4, 25 Oct. 2023
    English, Scientific journal
  • WIT-Greedy: Hardware System Design ofWeighted ITerative Greedy Decoder for Surface Code
    Wang Liao; Yasunari Suzuki; Teruo Tanimoto; Yosuke Ueno; Yuuki Tokunaga
    2023 28TH ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE, ASP-DAC, 209, 215, 2023
    English, International conference proceedings
  • Error-Mitigated Quantum Metrology via Virtual Purification
    Kaoru Yamamoto; Suguru Endo; Hideaki Hakoshima; Yuichiro Matsuzaki; Yuuki Tokunaga
    PHYSICAL REVIEW LETTERS, 129, 25, 16 Dec. 2022
    English, Scientific journal
  • Stimulated Emission of Superradiant Atoms in Waveguide Quantum Electrodynamics
    Rui Asaoka; Julio Gea-Banacloche; Yuuki Tokunaga; Kazuki Koshino
    PHYSICAL REVIEW APPLIED, 18, 6, 02 Dec. 2022
    English, Scientific journal
  • Gaussian-wave-packet model for single-photon generation based on cavity quantum electrodynamics under adiabatic and nonadiabatic conditions
    Takeru Utsugi; Akihisa Goban; Yuuki Tokunaga; Hayato Goto; Takao Aoki
    PHYSICAL REVIEW A, 106, 2, 19 Aug. 2022
    English, Scientific journal
  • Generalized Quantum Subspace Expansion
    Nobuyuki Yoshioka; Hideaki Hakoshima; Yuichiro Matsuzaki; Yuuki Tokunaga; Yasunari Suzuki; Suguru Endo
    PHYSICAL REVIEW LETTERS, 129, 2, 06 Jul. 2022
    English, Scientific journal
  • Quantum Error Mitigation as a Universal Error Reduction Technique: Applications from the NISQ to the Fault-Tolerant Quantum Computing Eras
    Yasunari Suzuki; Suguru Endo; Keisuke Fujii; Yuuki Tokunaga
    PRX QUANTUM, 3, 1, 18 Mar. 2022
    English, Scientific journal
  • Quantum algorithm for the calculation of transition amplitudes in hybrid tensor networks
    Shu Kanno; Suguru Endo; Yasunari Suzuki; Yuuki Tokunaga
    PHYSICAL REVIEW A, 104, 4, 27 Oct. 2021
    English, Scientific journal
  • Requirements for fault-tolerant quantum computation with cavity-QED-based atom-atom gates mediated by a photon with a finite pulse length
    Rui Asaoka; Yuuki Tokunaga; Rina Kanamoto; Hayato Goto; Takao Aoki
    PHYSICAL REVIEW A, 104, 4, 07 Oct. 2021
    English, Scientific journal
  • Optimization of a cavity-QED system for fast two-qubitgates
    Rui Asaoka; Takeru Utsugi; Yuuki Tokunaga; Rina Kanamoto; Takao Aoki
    2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC), 2021
    English, International conference proceedings
  • Suitable fault-tolerant schemes for cavity-QED-based quantum computation
    Rui Asaoka; Yuuki Tokunaga; Rina Kanamoto; Hayato Goto; Kazuki Koshino; Takao Aoki
    2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR), 2020
    English, International conference proceedings
  • Optimization of cavity parameters for high-speed quantum computation based on cavity QED
    Takeru Utsugi; Rui Asaoka; Yuuki Tokunaga; Takao Aoki
    2020 CONFERENCE ON LASERS AND ELECTRO-OPTICS PACIFIC RIM (CLEO-PR), 2020
    English, International conference proceedings
  • Figure of merit for single-photon generation based on cavity quantum electrodynamics
    Hayato Goto; Shota Mizukami; Yuuki Tokunaga; Takao Aoki
    PHYSICAL REVIEW A, 99, 5, 28 May 2019
    English, Scientific journal
  • Nonreciprocal microwave transmission based on Gebhard-Ruckenstein hopping
    Shumpei Masuda; Shingo Kono; Keishi Suzuki; Yuuki Tokunaga; Yasunobu Nakamura; Kazuki Koshino
    PHYSICAL REVIEW A, 99, 1, 10 Jan. 2019
    English, Scientific journal
  • Figure of merit for the efficiency of single-photon generation using cavity-QED systems
    Yuuki Tokunaga; Hayato Goto; Takeru Utsugi; Takao Aoki
    International Symposium on Single photon based quantum technologies, 2019
    International conference proceedings
  • Theory of Deterministic Entanglement Generation between Remote Superconducting Atoms
    K. Koshino; K. Inomata; Z. R. Lin; Y. Tokunaga; T. Yamamoto; Y. Nakamura
    PHYSICAL REVIEW APPLIED, 7, 6, 05 Jun. 2017
    English, Scientific journal
  • A photonic controlled-phase gate by passive use of a system
    Yuuki Tokunaga; Kazuki Koshino
    22nd Central European Workshop on Quantum Optics, Warsaw, Jul. 2015
    International conference proceedings
  • Simple Waveguide-QED-based Photonic Quantum Gates
    Yuuki Tokunaga; Kazuki Koshino
    Progress In Electromagnetics Research Symposium, Jul. 2015
    International conference proceedings
  • High-Fidelity Cluster State Generation for Ultracold Atoms in an Optical Lattice
    Kensuke Inaba; Yuuki Tokunaga; Kiyoshi Tamaki; Kazuhiro Igeta; Makoto Yamashita
    PHYSICAL REVIEW LETTERS, 112, 11, 17 Mar. 2014
    English, Scientific journal
  • Thresholds of surface codes on the general lattice structures suffering biased error and loss
    Yuuki Tokunaga; Keisuke Fujii
    ELEVENTH INTERNATIONAL CONFERENCE ON QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTATION (QCMC), 1633, 198, 200, 2014
    English, International conference proceedings
  • Control of Wannier orbitals for generating tunable Ising interactions of ultracold atoms in an optical lattice
    Kensuke Inaba; Yuuki Tokunaga; Kiyoshi Tamaki; Kazuhiro Igeta; Makoto Yamashita
    ELEVENTH INTERNATIONAL CONFERENCE ON QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTATION (QCMC), 1633, 240, 242, 2014
    English, International conference proceedings
  • Error and loss tolerances of surface codes with general lattice structures
    Keisuke Fujii; Yuuki Tokunaga
    PHYSICAL REVIEW A, 86, 2, 21 Aug. 2012
    English, Scientific journal
  • Discrete Fourier-Based Correlations for Entanglement Detection
    Ryo Namiki; Yuuki Tokunaga
    PHYSICAL REVIEW LETTERS, 108, 23, 04 Jun. 2012
    English, Scientific journal
  • Schmidt-number benchmark for genuine quantum memories and gates
    Ryo Namiki; Yuuki Tokunaga
    PHYSICAL REVIEW A, 85, 1, 26 Jan. 2012
    English, Scientific journal
  • Quantum entanglement generation using ultracold fermionic atoms in an optical lattice
    K. Inaba; Y. Tokunaga; K. Tamaki; K. Igeta; M. Yamashita
    The international conference on Quantum Information Processing and Communication (QIPC), Sep. 2011
  • Fault-Tolerant Topological One-Way Quantum Computation with Probabilistic Two-Qubit Gates
    Keisuke Fujii; Yuuki Tokunaga
    PHYSICAL REVIEW LETTERS, 105, 25, 14 Dec. 2010
    English, Scientific journal
  • Experimental verification of quantum process in one-way quantum computing
    Y. Tokunaga; S. Okamoto; R. Ikuta; R. Namiki; T. Yamamoto; M. Koashi; N. Imoto
    International Conference on Quantum Information and Computation (ICQIC), Oct. 2010
  • Complete process tomography of experimental one-way quantum computation
    Y. Tokunaga; S. Okamoto; R. Ikuta; T. Yamamoto; M. Koashi; N. Imoto
    The 3rd Conference on Quantum Information and Quantum Control (CQIQCIII), Aug. 2009
    International conference proceedings
  • Process Characterization of Experimental Photonic One-Way Quantum Computing
    Yuuki Tokunaga; Shin Kuwashiro; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto
    QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING (QCMC), 1110, 455, 458, 2009
    English, International conference proceedings
  • Generation of high-fidelity four-photon cluster state and quantum-domain demonstration of one-way quantum computing
    Yuuki Tokunaga; Shin Kuwashiro; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto
    PHYSICAL REVIEW LETTERS, 100, 21, 30 May 2008
    English, Scientific journal
  • Process Characterization of Experimental Photonic One-Way Quantum Computing
    Yuuki Tokunaga; Shin Kuwashiro; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto
    2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9, 3211, +, 2008
    English, International conference proceedings
  • Experimental photonic cluster state quantum computation over classical bounds
    Y. Tokunaga; S. Kuwashiro; T. Yamamoto; M. Koashi; N. Imoto
    International Conference on Quantum Information Processing and Communication (QIPC’07), 2007
  • Fidelity estimation and entanglement verification for experimentally produced four-qubit cluster states
    Yuuki Tokunaga; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto
    PHYSICAL REVIEW A, 74, 2, Aug. 2006
    English, Scientific journal
  • Simple experimental scheme of preparing a four-photon entangled state for the teleportation-based realization of a linear optical controlled-NOT gate - art. no. 030301
    Y Tokunaga; T Yamamoto; M Koashi; N Imoto
    PHYSICAL REVIEW A, 71, 3, Mar. 2005
    English, Scientific journal
  • Entanglement witnesses of four-qubit cluster states with local measurement
    Y. Tokunaga; T. Yamamoto; M. Koashi; N. Imoto
    Erato conference on Quantum Information Science (EQIS’05), 2005
    International conference proceedings
  • Threshold quantum cryptography
    Y Tokunaga; T Okamoto; N Imoto
    PHYSICAL REVIEW A, 71, 1, 012314, Jan. 2005
    English, Scientific journal
  • A four-photon entangled state for linear optical quantum information processing
    Y Tokunaga; T Yamamoto; M Koashi; N Imoto
    QUANTUM COMMUNICATION, MEASUREMENT AND COMPUTING, 734, 350, 353, 2004
    English, International conference proceedings
  • Anonymous Quantum Cash
    Yuuki Tokunaga; Tatsuaki Okamoto; Nobuyuki Imoto
    Erato conference on Quantum Information Science (EQIS’03), 2003
    International conference proceedings
  • One-way probabilistic reversible and quantum one-counter automata
    T Yamasaki; H Kobayashi; Y Tokunaga; H Imai
    THEORETICAL COMPUTER SCIENCE, 289, 2, 963, 976, 30 Oct. 2002
    English, Scientific journal
  • One-way probabilistic reversible and quantum one-counter automata
    T Yamasaki; H Kobayashi; Y Tokunaga; H Imai
    International Computing and Combinatorics Conference, 1858, 436, 446, 2000
    English, Scientific journal
■ Other Activities and Achievements
■ Books and other publications
■ Affiliated academic society
  • 情報処理学会
  • 日本物理学会
■ Research Themes
  • クロスレイヤー協調設計モデルの開発と拡張
    ムーンショット型研究開発事業
    2021 - 2030
    徳永裕己 (課題推進者)
    内閣府, 誤り耐性型量子コンピュータにおける理論・ソフトウェアの研究開発のプロジェクト（P M：小芦雅斗）, Coinvestigator
  • 分散量子コンピューティングの共創的マルチレイヤー設計とその実装
    戦略的な研究開発の推進 戦略的創造研究推進事業 CREST
    Oct. 2023 - Mar. 2029
    徳永 裕己 (研究代表者)
    未だ実現の目処が立っていない大規模な分散量子計算に向けて、ハードウェアからアーキテクチャ、ソフトウェアまでのこれまでにない共創的なマルチレイヤー設計により、理論と実験を一気通貫し、分散量子計算の性能を最大限引き出す枠組みを提示し、分散量子計算機のプラットフォームを構築します。
    科学技術振興機構, 日本電信電話株式会社, Principal investigator
  • 「量子コンピュータの性能を引き出すための基盤アルゴリズム開発」および「量子コンピュータの性能を引き出すためのシステム・アーキテクチャ設計」
    光・量子飛躍フラッグシッププログラム（Q-LEAP）
    2020 - 2029
    徳永裕己 (研究分担者)
    文科省, 量子情報処理技術領域 「知的量子設計による量子ソフトウェア研究開発と応用」（研究代表者：藤井啓祐）, Coinvestigator
  • ナノファイバー共振器Q E D方式に適した量子誤り訂正理論
    ムーンショット型研究開発事業 目標６：2050年までに、経済・産業・安全保障を飛躍的に発展させる誤り耐性型汎用量子コンピュータを実現
    2023 - 2025
    徳永裕己 (課題推進者)
    内閣府, ナノファイバー共振器QED による大規模量子ハードウェア（P M：青木隆朗）, Coinvestigator
■ Industrial Property Rights