# Nvidia reports 104-qubit simulation under realistic hardware noise

_Published Monday, October 19, 2026 at 2:19 PM EDT · Science, Infrastructure · Latest · Tier 2 — Notable_

![JUPITER Supercomputer — Primary](https://iprsoftwaremedia.com/219/files/202610/50251123164c2b783748b003bc473940/6ad65ba13d6332f05e072a37_quantum-computing-jupiter-supercomputer/quantum-computing-jupiter-supercomputer_41b14eed-74aa-4882-94b8-7c5195b3c9bb-prv.jpg?v=41b14eed-74aa-4882-94b8-7c5195b3c9bb)

Nvidia says it simulated a 104-qubit fault-tolerant quantum processor on 8,192 GPUs at Jülich Supercomputing Centre, validating an approach that requires 90% fewer physical qubits than previous methods. The simulation modeled realistic hardware noise to test how errors affect computation.

The approach, called magic-state cultivation, produces arrangements of qubits consumed during fault-tolerant computation. Simulating that process lets researchers evaluate designs before building quantum hardware. Nvidia used its cuQuantum software and CUDA-Q platform on JUPITER's GH200 GPUs. Earlier Jülich research simulated 50 qubits under ideal, noiseless conditions; this result concerns simulated processor behavior rather than operation of a physical quantum computer.

## Sources

- [News Releases - NVIDIA Newsroom](https://nvidianews.nvidia.com/news/nvidia-runs-record-simulation-of-fault-tolerant-quantum-computing-at-julich-supercomputing-centre)

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Canonical: https://techandbusiness.org/newswire/By2nsNE2ni8g5KQt7P6NtX
Published: 2026-10-19T18:19:04.352Z
Story chronology: 2026-10-19T18:00:00.000Z
Retrieved: 2026-10-19T21:17:08.922Z
Publisher: Tech & Business (techandbusiness.org)