A trapped-ion processor runs error correction well below threshold

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Figure 1 of the paper: (a) triangular colour codes at distances 3, 5 and 7, gold dots are physical qubits; (b) the circuit that measures the stabilisers; (c) the logical error rate per round falls from about 5 × 10⁻⁴ at distance 3 to about 5 × 10⁻⁶ at distance 7, a suppression factor Λ of about 12. — Read the explanationFigure 1 of Lavasani et al., arXiv:2610.24077, CC BY 4.0. Unmodified.

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Issue 2 | 22 October 2026

Conveyor belts for qubits: a blueprint for fast, low-overhead error correction in silicon
It is the first co-design of a qLDPC code family and spin-qubit hardware, according to the author, and it argues that very low overhead and a fast…
An energy gap that keeps many-level spins squeezed together
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Building large "cat states" of light on demand, with feedback instead of luck
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Who is allowed to forget? Entanglement as the key to erasing a quantum memory cheaply
It links a thermodynamic quantity, the work cost of erasure, to a security property: the cost of erasing becomes a measure of exclusive control over a…

Earlier issues

Issue 0 | 22 October 2026A quantum network link that runs at the speed of a quantum computerand 4 more