One-sentence summary
On October 19, 2026 (US Eastern), NVIDIA announced that its research team completed a record 104-qubit fault-tolerant quantum computing simulation on the JUPITER supercomputer (Juelich Supercomputing Centre, Germany) using 8,192 GH200 GPUs, validating the "magic state cultivation" approach that can reduce the required physical qubits by about 90%.
Event Overview
- On October 19, 2026 (US Eastern), NVIDIA announced that its research team completed a record fault-tolerant quantum computing simulation on the JUPITER supercomputer at the Juelich Supercomputing Centre in Germany.
- The simulation reached 104 qubits, the largest comprehensive simulation of a fault-tolerant quantum computing system to date.
- The work models the impact of real hardware noise on fault-tolerant computation: the Juelich team had previously completed a full 50-qubit simulation of a general-purpose quantum computer on JUPITER under ideal, noise-free conditions, while the new 104-qubit simulation addresses the key fault-tolerant process under realistic noise.
Key Information
| Item | Detail |
|---|---|
| Announcement | October 19, 2026 (US Eastern), reported in China on October 20 |
| Platform | JUPITER supercomputer, Juelich Supercomputing Centre, 8,192 NVIDIA GH200 GPUs |
| Scale | 104-qubit fault-tolerant quantum computing simulation (record) |
| Approach | Validates "magic state cultivation" |
| Resource reduction | About 90% fewer physical qubits than the "magic state distillation" approach |
| Development flow | First tested on NVIDIA GB200 NVL72 systems at the NVIDIA Accelerated Quantum Research Center (4 to hundreds of GPUs), then scaled to 8,192 GPUs on JUPITER; simulation work compressed from weeks to days |
| Software stack | NVIDIA cuQuantum, fault-tolerant logical computation layer of the CUDA-Q platform |
- NVIDIA CEO Jensen Huang said that understanding how complex fault-tolerant systems behave at scale is key to practical quantum computing, and GPU supercomputers help researchers tackle problems that were previously out of reach.
- Kristel Michielsen, director of the Juelich Supercomputing Centre, said JUPITER lets researchers explore previously inaccessible problems and the collaboration with NVIDIA helps scientists better judge which designs are most likely to reach practical use.
- NVIDIA noted that the about-90% reduction refers to the physical-qubit requirements of the magic-state preparation approach, not to all hardware requirements of the entire quantum system, and does not mean practical quantum computers are already commercialized.
Official Sources
- Tencent News (via Wall Street CN): NVIDIA announces breakthrough: record fault-tolerant quantum simulation cuts physical bits by 90% on over 8,000 GPUs (October 20, 2026)link
- National Business Daily: NVIDIA announces quantum fault-tolerant simulation breakthrough (October 20, 2026)link
- IT Home: Europe's first exascale supercomputer joins NVIDIA to complete 104-qubit fault-tolerant simulation (October 20, 2026)link