anyon | New quantum papers, explained

Slide 1: Bigger error protection, twelve times fewer errors. Measured on Quantinuum’s Helios: each step up in size cut errors about twelvefold, a wide margin below the threshold. A triangle of seven qubits with one flipped qubit and the two tiles touching it raising flags.

Slide 2: Every qubit is fragile. A row of seven qubits, one flipped by a disturbance.

Slide 3: So one qubit is spread over seven. Coloured tiles check the qubits at their corners; the two tiles touching the flipped qubit raise a flag.

Slide 4: Bigger patch, fewer errors. Errors per round, read from Figure 1c and rounded: about 5 in 10,000 with 7 qubits, about 4 in 100,000 with 19 and about 5 in a million with 37, labelled about ÷12 per step.

Slide 5: But only if every qubit is good enough. Schematic: adding qubits leads to more errors above a threshold (too noisy) and to fewer errors below it (good enough).

Slide 6: Helios is well below the threshold. Errors fell about twelvefold per step up in size, best result about 5 errors in a million rounds. Three triangles of growing size for 7, 19 and 37 qubits, divided by 12 between each. Link to anyon.news.

Slide 2 of 6

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Issue 1 | 22 October 2026

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