Claim record · edition 0.1.0
qc-005Established result
Below-threshold surface-code memory performance has been experimentally reported, but it is not yet a demonstration of general-purpose fault-tolerant quantum computing.
The reported experiments show logical-memory error suppression as code distance grows under defined conditions; scalable logical computation remains further work.
Limits of this claim
This claim describes a particular experimental result and must not be generalized to all platforms or complete algorithms.
Supporting sources
primary paper · verified
Quantum error correction below the surface code threshold
Google Quantum AI and collaborators · 2025
Experimental report of below-threshold surface-code memories; it does not demonstrate a general-purpose fault-tolerant computer.
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