FTQC Hackathon & Exchange Meeting for 3 days @ The University of Osaka
Initiator: Shin Nishio (UCL & Keio University)
Organizer: Fumiyoshi Kobayashi (Mercari R4D)
Local Organizer: Nilton Filho (The University of Osaka)
FTQC theorists are working across different physical-system projects in Moonshot (National project for FTQC in Japan), and there is an opportunity to further promote theoretical research and collaboration across different physical systems, within the Moonshot program and more broadly across Japan. Following the success of the decoder camp held at Kyushu University in February 2026, we will host a hackathon and exchange meeting in Osaka to further facilitate such interactions and bring together FTQC theorist / experimentalist from across the Moonshot program and beyond.
The event will also provide opportunities for interaction and collaboration with observer companies. Participants will utilize software developed through Moonshot projects, such as device-aware compilation tools, noisy-circuit simulators, and resource estimators for FTQC.
The goal of HEM3 is not necessarily to produce a completed implementation during the event. We encourage participants to use the hackathon to identify interesting research questions, develop new formulations, test early ideas, and initiate collaborations that may continue beyond HEM3.
| Time | Session | Presenter |
|---|---|---|
| 10:00 | Opening & Discussion: What are the wrong abstractions in current FTQC research? | Nishio |
| 10:30 | TBA (trapped ion): compiler & noisy circuit sim | Mr. Ishikawa & Mr. Hirai |
| 11:00 | Losssim : circuit-level loss / erasure sim | Nishio |
| 11:30 | DualYbSim (neutral atom): compiler & noisy circuit sim | Dr. Kobayashi |
| 12:00 | Lunch and discussion | — |
| 13:30 | TBA (superconductor): compiler & noisy circuit sim | Prof. Matsuzaki |
| 14:00 | Quration: resource estimator for FTQC | Dr. Suzuki |
| 14:30 | VeriQ: Verifying logical error rates | Prof. Soeda |
| 15:00 | Brainstorming & team forming (if necessary) | Nishio |
| 16:00 – | Happy Hacking! | — |
13:00-13:30 Mid discussion
We have a presentation for the hackathon results and hold a dicussion.
★ connected to Stim
| Tool | Description | GitHub Repository |
|---|---|---|
| Traqer ★ | (QCCD trapped-ion) Compiler & noisy circuit sim | TBA |
| Losssim ★ | Circuit-level loss / erasure sim | TBA |
| TBA ★ | non-Clifford circuit simulator for non-Pauli stabilzer codes | TBA |
| DualYbSim ★ | (neutral atom) Noisy circuit sim | FumiKobayashi/DualYbSim |
| TBA | (superconductor) Compiler & noisy circuit sim | TBA |
| Quration | Quantum Resource Estimation Toolchain | quration/quration |
| VeriQ | Logical error rate simulator for low error rate less than 10 − 15 | TBA |
| CoQtail | Quantum circuit and QEC visualizer | CoQtail |
| NAQsim | Architecture-level simulation framework for neutral-atom | NAQsim |
Akihito Soeda - National Institute of Informatics
Chen Jiajun - Okinawa Institute of Science and Technology
Eitaro Ishikawa - Keio University
Fumiyoshi Kobayashi, - Mercari, inc.
Hiroki Fukuhara - The University of Osaka
Isamu Kudo - Keio University and Mitsubishi Electric Corporation
Joshua Casapao - JAIST
Junichi Haruna - Kyoto University
Koichiro Miyanishi, - Qubitcore Inc.,
Kohei Yamamoto - The University of Osaka
Nilton Filho - The University of Osaka
Noah Hirai - Keio University
Riki Toshio - Fujitsu Ltd
Ryo Wakizaka - IBM Research Tokyo
Salome Hayes-Shuptar - Okinawa Institute of Science and Technology
Shin Nishio - University College London and Keio University
Sota Nakamura - Kyoto University
Takumi Akiyama - The University of Osaka
Teruo Tanimoto - Kyusyu University
Yasunari Suzuki - RIKEN
Yosuke Ueno - RIKEN
Yuichiro Matsuzaki - Chuo University
Yusuke Machida - Chuo University
Toyonaka Campus, The University of Osaka
If you’re interested in joining, or have suggestions for participants, tools, or venues, please get in touch.