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From NISQ to Fault Tolerance | John Preskill at QWC 2026

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Engineers installing an IBM Quantum System One cryogenic assembly at FraunhoferContext photo · Holger Muench / IBM · CC BY 2.0

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Engineers install IBM Quantum System One at Fraunhofer. Archival quantum-computing context, not a video frame or the apparatus of another study.

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John Preskill's Quantum World Congress 2026 talk assesses the transition from noisy intermediate-scale quantum devices toward fault tolerance, including error-correction overhead, QLDPC codes, neutral atoms, cryogenic control and changing resource estimates. It is included as a fresh first-party conference research talk despite its early view count; the presentation is analysis and outlook, not evidence that fault-tolerant hardware has already arrived.

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