--- description: NVIDIA's JUPITER quantum simulation models 104 qubits of magic state cultivation under real noise on 8,192 GH200 GPUs and 512 TiB. title: NVIDIA JUPITER Quantum Simulation Models a 104-Qubit Fault-Tolerant Processor Across 8,192 GH200 GPUs and 512 TiB image: https://www.storagereview.com/wp-content/uploads/2026/10/Storagereview-quantum-computing-jupiter-supercomputer-2.jpg --- [![Storage Review]()](https://storagereview.com/) --- [Facebook](https://www.facebook.com/@storagereview) [X (Twitter)](https://twitter.twitter.com/storagereview) [Instagram](https://www.instagram.com/storagereview/) [LinkedIn](https://www.linkedin.com/company/storagereview-com) [YouTube](https://www.youtube.com/user/storagereview?sub_confirmation=1) [Email](mailto:info@storagereview.com) [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0) [Reddit](https://www.reddit.com/r/StorageReview/) [Discord](https://discord.gg/TwMHb4azdC) [RSS Feed](https://www.storagereview.com/rss.xml) [TikTok](https://www.tiktok.com/@storagereview) [Facebook](https://www.facebook.com/@storagereview) [X (Twitter)](https://twitter.com/storagereview) [Instagram](https://www.instagram.com/storagereview/) [LinkedIn](https://www.linkedin.com/company/storagereview-com) [YouTube](https://www.youtube.com/user/storagereview?sub_confirmation=1) [Email](mailto:info@storagereview.com) [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0) [Reddit](https://www.reddit.com/r/StorageReview/) [Discord](https://discord.gg/TwMHb4azdC) [RSS Feed](https://www.storagereview.com/rss.xml) [TikTok](https://www.tiktok.com/@storagereview) [![StorageReview.com](https://www.storagereview.com/wp-content/uploads/2026/07/Storage-Review-2x.png)](https://www.storagereview.com) ≡ Menu - [Home](https://www.storagereview.com/) - [Storage Reviews](https://www.storagereview.com/review) - [End User Reviews](https://www.storagereview.com/consumer) - [Enterprise Reviews](https://www.storagereview.com/enterprise) - [Ubiquiti Reviews](https://www.storagereview.com/best/ubiquiti-reviews) - [SR Merch](https://store.storagereview.com) - [Leaderboards](https://www.storagereview.com/best) - [Best Storage Arrays](https://www.storagereview.com/best/storage-arrays) - [Best Enterprise SSDs](https://www.storagereview.com/best/enterprise-ssds) - [Best Servers](https://www.storagereview.com/best/servers) - [Best Enterprise GPUs](https://www.storagereview.com/best/enterprise-gpus) - [Best Desktops for Local AI](https://www.storagereview.com/best/desktops-local-ai) - [Best Laptops for Local AI](https://www.storagereview.com/best/laptops-local-ai) - [Best Local LLM Tools](https://www.storagereview.com/best/local-llm-tools) - [Agentic AI Hardware](https://www.storagereview.com/best/agentic-ai-hardware) - [Best SSDs & Hard Drives](https://www.storagereview.com/best_drives) - [Best Portable SSDs](https://www.storagereview.com/best/portable-ssds) - [Best Business Laptops](https://www.storagereview.com/best/business-laptops) - [Best Mobile Workstations](https://www.storagereview.com/best/mobile-workstations) - [Best Desktop Workstations](https://www.storagereview.com/best/desktop-workstations) - [Best Mini PCs](https://www.storagereview.com/best/mini-pcs) - [Best Laptop Battery Life](https://www.storagereview.com/best/laptop-battery-life) - [Storage Reference Guide](https://www.storagereview.com/storage-reference-guide) - [About SR](https://www.storagereview.com/about-storagereview) - [StorageReview.com Sweepstakes Rules and Regulations](https://www.storagereview.com/storagereview-com-sweepstakes-rules-and-regulations) Search [Home](https://www.storagereview.com/) » [News](https://www.storagereview.com/news) » NVIDIA JUPITER Quantum Simulation Models a 104-Qubit Fault-Tolerant Processor Across 8,192 GH200 GPUs and 512 TiB # NVIDIA JUPITER Quantum Simulation Models a 104-Qubit Fault-Tolerant Processor Across 8,192 GH200 GPUs and 512 TiB by Harold Fritts on October 20, 2026 [AI](https://www.storagereview.com/enterprise/ai)  ◇  [Enterprise](https://www.storagereview.com/enterprise) NVIDIA has run a 104-qubit simulation of a fault-tolerant quantum processor on [JUPITER](https://www.storagereview.com/news/jupiter-selects-nvidia-gh200-to-power-new-era-in-supercomputing), Europe’s first exascale supercomputer at the Jülich Supercomputing Centre, using 8,192 GH200 GPUs. Announced ahead of GTC Berlin, the run models magic state cultivation, a method of producing the non-Clifford states a fault-tolerant computer consumes during logical operations, under realistic hardware noise. NVIDIA calls it the largest comprehensive simulation of a fault-tolerant quantum processor to date and says cultivation needs 90 percent fewer qubits than previous methods, a comparison the company does not spell out. ![JUPITER supercomputer rack aisle at Forschungszentrum Jülich with a JUPITER The First Exascale System in Europe panel on the end cabinet](https://www.storagereview.com/wp-content/uploads/2026/10/Storagereview-quantum-computing-jupiter-supercomputer-2.jpg) ## 104-Qubit Fault-Tolerant Modeling Under Realistic Noise Earlier Jülich work simulated 50 qubits under ideal, noiseless conditions, and this run keeps the noise in. The 104 physical qubits cover the data and auxiliary qubits across the whole protocol, which starts a magic state in a distance-3 color code, adds flag measurements to catch harmful faults, grows it into a distance-7 hybrid color and surface code, and finishes with further error-correction rounds and readout. The noise model goes beyond random bit and phase flips to coherent phase errors that can accumulate and interfere, and selected sites carry a third energy level so the simulation captures leakage out of the computational states. The state is a full state vector, with no Clifford shortcuts for the non-Clifford operations that prepare the magic state. The encoded register comes to 45 bits, about 35.2 trillion complex amplitudes, which occupy 512 TiB of distributed GPU memory in double precision, or 64 GiB on each of the 8,192 GPUs, with room left for communication and analysis. NVIDIA’s simulator reorders operations while preserving dependencies and measurement statistics, reuses storage as qubits are measured and released, and packs the three-level sites into binary storage, so five of them (243 basis states) fit in eight bits. In small cases, independent tensor-network calculations matched the state-vector results to about one part in 10 trillion. ## Development on GB200 NVL72 and the cuQuantum Stack A GB200 NVL72 system at the NVIDIA Accelerated Quantum Research Center served as the development platform. Researchers scaled tests from four GPUs to hundreds there, compared results against JUPITER, and studied how accuracy changed with more compute before committing the full 8,192-GPU allocation, which NVIDIA says cut a week-long simulation effort to days. The run uses cuQuantum’s cuStateVec library for the state-vector evolution, with cuBLASMp and cuSOLVERMp factoring selected partitions of the stored state so approximate methods can be checked against the full reference. The cultivation circuit is expressed through the [fault-tolerant logical layer of CUDA-Q](https://www.storagereview.com/news/nvidia-cuda-q-logical-fault-tolerant-quantum-fermilab-diraq). Kristel Michielsen, director of the Jülich Supercomputing Centre at the Forschungszentrum Jülich facility, said: “Europe’s investment in JUPITER gives researchers the ability to investigate questions that were previously beyond reach.” NVIDIA’s stated goal for the work is to connect the error propagation it observed to the quality and cost of logical operations, so hardware teams can weigh designs before fabricating them. No logical error rates, fidelities, or runtimes have been published for the run so far. ### [NVIDIA CUDA-Q](https://developer.nvidia.com/cuda-q) **Engage with StorageReview** [Newsletter](https://www.storagereview.com/storage_newsletter) |  [YouTube](https://www.youtube.com/user/StorageReview "Opens in a new window") | Podcast  [iTunes](https://podcasts.apple.com/gb/podcast/storagereview-com-storage-reviews/id1060681115 "Opens in a new window")/ [Spotify](https://open.spotify.com/show/1y6VnznABhHeOSMOmbDTz0 "Opens in a new window") |  [Instagram](https://www.instagram.com/storagereview/ "Opens in a new window") |  [Twitter](https://twitter.com/storagereview "Opens in a new window") |  [TikTok](https://www.tiktok.com/@storagereview? "Opens in a new window") |  [RSS Feed](https://www.storagereview.com/rss.xml) ![]() ### Harold Fritts I have been in the tech industry since IBM created Selectric. My background, though, is writing. So I decided to get out of the pre-sales biz and return to my roots, doing a bit of writing but still being involved in technology. 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