AI & Tech
NVIDIA and Jülich Complete 104-Qubit Fault-Tolerant Computing Simulation in 2026
NVIDIA and the Jülich Supercomputing Centre completed a 104-qubit simulation of a fault-tolerant quantum computing system on JUPITER in 2026. NVIDIA said the approach uses 90% fewer physical qubits than previous methods, while the result remains a simulation conducted before hardware construction.
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NVIDIA and the Jülich Supercomputing Centre completed a 104-qubit simulation of a fault-tolerant quantum computing system on JUPITER in 2026. NVIDIA said that, as of the 2026 announcement, it was the largest comprehensive simulation of a fault-tolerant quantum computing system.
The 2026 simulation used 8,192 NVIDIA GH200 GPUs and ran the magic-state preparation protocol with CUDA-Q and cuQuantum.
The model included coherent phase errors and leakage. Leakage represents a superconducting qubit leaving its two computational levels; the model represented that condition with a third energy level.
The magic-state cultivation protocol grew from a distance-3 color code to a distance-7 hybrid color/surface-code configuration. NVIDIA said the method requires 90% fewer physical qubits than previous methods.
The 2026 result is a simulation on a supercomputer, not a built, usable fault-tolerant quantum computer. Its purpose is to let researchers evaluate designs before building quantum hardware.
NVIDIA said that, as of the 2026 announcement, development work at NVAQC shortened a simulation effort that originally took weeks to days, before the team used JUPITER’s 8,192 GPUs.
Sources
- Advancing Fault-Tolerant Quantum Computing with GPU-Accelerated Simulation - NVIDIA Quantum (nvidia.github.io)
- NVIDIA Runs Record Simulation of Fault-Tolerant Quantum Computing at Jülich Supercomputing Centre | NVIDIA Newsroom Artificial Intelligence Computing Leadership from NVIDIAic_arrow-back-to-topFacebookLinkedInInstagramYouTubeNVIDIA (nvidianews.nvidia.com)
- NVIDIA and Jülich Run 104-Qubit Magic State Cultivation Simulation on JUPITER Supercomputer - Quantum Computing Report (quantumcomputingreport.com)