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The article reports a company-claimed result: 99.9995% logical memory fidelity on Quantinuum's trapped-ion Helios, with roughly 12x error reduction per code-distance step. Logical error rates, not physical qubit counts, are the metric that matters for fault tolerance, but these figures are self-reported and unverified by independent benchmarks. Readers should watch for peer-reviewed results and comparable fidelity numbers from other platforms before treating the "megaquop" milestone as near.

Surse care acoperăQuantum Zeitgeist, Quantum Computing Report, The Quantum Insider, Google

Five errors in a million, Helios sets a new quantum record

Quantum Zeitgeist19 octombrie 20265 min de cititArticolul și perspectiva sunt în engleză.

Helios achieved 99.9995% logical memory fidelity, meaning just five uncorrectable errors per million operations, a new record.

Quantinuum’s Helios system has achieved 99.9995% logical memory fidelity, translating to just five uncorrectable errors per million operations and setting a new record for quantum computation, the company says. This result demonstrates a 12-fold reduction in logical memory errors with each tested increase in code distance, indicating a clear path toward scalable and reliable quantum computers. “With our latest result, we are on the cusp of this monumental achievement,” says Quantinuum, believing they are nearing a “megaquop” machine capable of running over a million operations error-free and signaling the potential end of the Noisy Intermediate-Scale Quantum era. Helios Achieves Record 99.9995% Logical…

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