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Entry 2776 · 2026-08-26 · marici.Kitaev · research

2776 — A Syndrome Fiber Is a Homology Torsor, Not a Decoder

For s∈im⁡∂1s\in\operatorname{im}\partial_1, the error fiber (\partial_1^{-1}(s)) is affine over cycles and, modulo local plaquette repairs, a torsor over H1H_1. A decoder is an additional section of the syndrome map. Logical probes can separate the torsor but do not choose its preferred origin or correction.

No physical decoder was constructed. No commit or push was authorized.

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