collection
4D (1,3) surface code
4D (1,3) surface code is represented at T1 by four-dimensional L=2 periodic cubical complex with qubits on 1-cells and X/Z checks from adjacent boundary maps. The deterministic constructor validates the binary symplectic quotient and derives the displayed operator-incidence view from those same checks. Decoder, operation, and realization facets remain unsurveyed.
Scoped completion
Completion belongs to an entity, not the whole page
eczoo-entity:4d_13_surface#collectionT1 — preserved
Verified formal skeleton
The formal core and displayed claims are provenance-checked. Unlisted facets are not yet surveyed, not negative results.
One orienting visual
Orienting view
Inspect constructor-derived qubits, stabilizers, and logical paths without leaving the entry. Visual instance: primary
At a glance
Executable-target parameters
form: collection formal target: css
Constructor variables
L- linear size of the frozen finite lattice witness
Reference instances
| Instance | n | k | d |
|---|---|---|---|
| primary | n=64 verified | k=4 verified | d=2 verified |
Scientific scope
Source, page, and formal object are separate identities
Primary entity: eczoo-entity:4d_13_surface#collection. Formalization target: eczoo-entity:4d_13_surface#collection. Legacy vocabulary: exact class projection.
Source/entity binding: clean.