Yosuke Ueno

Yosuke Ueno

Research Scientist, RIKEN Center for Quantum Computing

About me

I’m Yosuke Ueno, a research scientist at Quantum Computer System Design Research Team, RIKEN Center for Quantum Computing. Also, I’m a Project Research Associate at the University of Tokyo and a visiting scientist at NanoQT. I’m a visiting researcher at Keio University and Kyushu University.

Researchmap link

Quantum Papers on Computer Architecture Conferences with short summaries in Japanese (as of Mar. 2026)

Research Interests

  • Quantum computer architecture
  • Quantum error correction
  • Cryogenic computing using single flux quantum (SFQ) logic

Academic Service

Program Committee

Organizing Committee

News

  • [Nov. 3, 2026] Our paper “PACE: Enabling Fast Transversal CNOTs through Decoder-Aware Co-Design on Surface Code” is accepted by HPCA2027. [arXiv link]
  • [Jul. 21, 2026] Our work “Circuit-Level Implementation and Evaluation of Logical SH Gates in the Surface Code” is accepted by the poster session of QCE2026.
  • [Jul. 8, 2026] Our paper “NAQsim: Full-Stack Architecture Simulation Framework for Fast and Space-Efficient Neutral Atom Quantum Computing” is accepted by MICRO2026 [arXiv link].
  • [Jun. 23, 2026] Our new preprint “Bounded-depth spacetime lattice surgery for resource-efficient fault-tolerant quantum computation” is now on arXiv. [arXiv link]
  • [Apr. 17, 2026] Our work “No More Hooks in the Surface Code: Distance-Preserving Syndrome Extraction for Arbitrary Layouts at Minimum Depth” is accepted by the poster session of QEC2026. [arXiv link]
  • [Apr. 15, 2026] Our new preprint “A 2d x d x d Spacetime Volume Implementation of a Logical S Gate in the Surface Code” is now on arXiv. [arXiv link]
  • [Apr. 1, 2026] I started working as a Research Scientist at Quantum Computer System Design Research Team, RIKEN Center for Quantum Computing.
  • [Mar. 3, 2026] Our new preprint “No More Hooks in the Surface Code: Distance-Preserving Syndrome Extraction for Arbitrary Layouts at Minimum Depth” is now on arXiv. [arXiv link]
Old news
  • [Aug. 12, 2026] Our new preprint “Do Not Let CNOTs Overwhelm the Decoder: Scheduling Transversal Gates for Fast FTQC” is now on arXiv. [arXiv link]
  • [Oct. 30, 2025] In Quantum Computing Applications and Systems Workshop co-located with ICCAD2025, I gave a talk on our LSQCA paper. [slide]
  • [Sep. 2, 2025] Our new preprint “Accelerating BP-OSD Decoder for QLDPC Codes with Local Syndrome-Based Preprocessing” is now on arXiv. [arXiv link]
  • [Jul. 8, 2025] Our paper “Online Job Scheduler for Fault-tolerant Quantum Multiprogramming” is accepted by QCE2025. [arXiv link]
  • [May 16, 2025] I started working as a Project Research Associate at the University of Tokyo.
  • [May 13, 2025] Our new preprint “Online Job Scheduler for Fault-tolerant Quantum Multiprogramming” is now on arXiv. [arXiv link]
  • [Dec. 29, 2024] Our paper “LSQCA: Resource-Efficient Load/Store Architecture for Limited-Scale Fault-Tolerant Quantum Computing” is accepted by HPCA2025. [arXiv link], [Press release (English) / (Japanese)].
  • [Dec. 17, 2024] Our paper “C3-VQA: Cryogenic Counter-based Co-processor for Variational Quantum Algorithms” is accepted by IEEE Transactions on Quantum Engineering (TQE). [arXiv link]
  • [Dec. 13, 2024] Our new preprint “An Optical Interconnect for Modular Quantum Computers” is now on arXiv. [arXiv link]
  • [Nov. 26, 2024] Our new preprint “High-Performance and Scalable Fault-Tolerant Quantum Computation with Lattice Surgery on a 2.5D Architecture” is now on arXiv. [arXiv link]
  • [Sep. 13, 2024] Our new preprint “C3-VQA: Cryogenic Counter-based Co-processor for Variational Quantum Algorithms” is now on arXiv. [arXiv link]
  • [Mar. 4, 2024] Our new paper “SFQ counter-based precomputation for large-scale cryogenic VQE machines” is accepted by the work in progress poster session in the 61st Design Automation Conference. [arXiv link]
  • [Oct. 4, 2023] Our new paper “Inter-temperature Bandwidth Reduction in Cryogenic QAOA Machines” is accepted by IEEE Computer Architecture Letters. [arXiv link]
  • [Jul. 28, 2023] Our perspective paper “Real-Time Decoding for Fault-Tolerant Quantum Computing: Progress, Challenges and Outlook” is now accepted on Nano Futures! [arXiv link]
  • [Jul. 14, 2023] I shared the list of Quantum Papers on Computer Architecture Conferences with short summaries in Japanese.
  • [Apr. 1, 2023] I started working at RIKEN as a postdoc researcher.
  • [Mar. 2, 2023] Our new perspective paper “Real-Time Decoding for Fault-Tolerant Quantum Computing: Progress, Challenges and Outlook” is now on arXiv. [link]
  • [Mar. 1, 2023] After my stay in Munich, I returned to Japan.
  • [Sep. 29, 2022] Our new paper “WIT-Greedy: Hardware System Design of Weighted ITerative Greedy Decoder for Surface Code” is accepted by ASP-DAC 2023.
  • [Sep. 22, 2022] I made a presentation in Real-time decoding for FTQC workshop in IEEE Quantum week. [link], [slide]
  • [Aug. 12, 2022] Our new preprint “NEO-QEC: Neural Network Enhanced Online Superconducting Decoder for Surface Codes” is now on arXiv. [link]
  • [Jun. 4, 2022] My research life at Munich begins!
  • [Apr. 1, 2022] The press release about our HPCA2022 paper is now opened (link in Japanese and English).
  • [Oct. 28, 2021] Our new paper “QULATIS: A Quantum Error Correction Methodology toward Lattice Surgery” is accepted by HPCA 2022.

Selected Publications

See my full publication list for all publications and talks.

[HPCA2027] (To appear) PACE: Enabling Fast Transversal CNOTs through Decoder-Aware Co-Design on Surface Code, Shota Ikari, Yuga Hirai, Yasunari Suzuki, Hiroshi Nakamura, Yosuke Ueno.

[MICRO2026] NAQsim: Full-Stack Architecture Simulation Framework for Fast and Space-Efficient Neutral Atom Quantum Computing, Yosuke Ueno, Shinichi Sunami, Toshihide Hinokuma, Yasunari Suzuki, Akihisa Goban, Hayata Yamasaki, Teruo Tanimoto, Ilkwon Byun.

[HPCA2025] 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.

[TQE2024] C3-VQA: Cryogenic Counter-based Co-processor for Variational Quantum Algorithms, Yosuke Ueno, Satoshi Imamura, Yuna Tomida, Teruo Tanimoto, Masamitsu Tanaka, Yutaka Tabuchi, Koji Inoue, Hiroshi Nakamura.

[HPCA2022] QULATIS: A Quantum Error Correction Methodology toward Lattice Surgery, Yosuke Ueno, Masaaki Kondo, Masamitsu Tanaka, Yasunari Suzuki, Yutaka Tabuchi.

[DAC2021] QECOOL: On-Line Quantum Error Correction with a Superconducting Decoder for Surface Code, Yosuke Ueno, Masaaki Kondo, Masamitsu Tanaka, Yasunari Suzuki, Yutaka Tabuchi.