Wire · technology
Logical quantum fidelity record set
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Fusion42 · 24 October 2026 · Fusion42 review
Quantinuum's trapped-ion Helios quantum system achieved a world-record 99.9995% logical fidelity, reducing errors to five per million quantum computations and surpassing superconducting systems by a factor of 100 in logical error rates.
This Wire brief sits within Fusion42's coverage of Quantum Computing, and 4 sources have reported it between 19 Oct 2026 and 27 Oct 2026.
◆ ◆ The Wire takeaway
You need to rethink your quantum roadmap as trapped-ion systems now deliver fault tolerance far beyond superconducting chips. This leap opens the door to practical quantum applications in simulation and materials long blocked by error rates.
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4 sources · first reported 19 Oct 2026 · latest 27 Oct 2026
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