# Quantinuum experiment cuts quantum memory errors to five per million uses

_Published Monday, October 19, 2026 at 8:18 AM EDT · Science · Latest · Tier 2 — Notable_

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Quantinuum researchers demonstrated quantum information storage with as few as five errors per million qubit uses on the company's Helios-1 computer, New Scientist reports. Similar past experiments produced hundreds of errors per million uses.

The 98-qubit machine combines corrective laser pulses with a "colour code" that groups physical qubits into more reliable logical qubits. Errors fell twelve-fold when a logical qubit grew from seven to 19 physical qubits, with the same reduction when it grew from 19 to 37.

A simple mathematical operation produced about seven errors per 100,000 qubit uses. Whether the low error rates persist during more complex operations remains unresolved.

## Sources

- [New Scientist](https://www.newscientist.com/article/2594366-error-correction-record-pushes-quantum-computers-closer-to-usefulness/)

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Canonical: https://techandbusiness.org/newswire/xgcDFc_R5Qf8mAZ6mCuYuK
Published: 2026-10-19T12:18:11.786Z
Story chronology: 2026-10-19T12:00:00.000Z
Retrieved: 2026-10-19T15:11:46.340Z
Publisher: Tech & Business (techandbusiness.org)