collection
Subsystem product code
Subsystem product code is represented at T1 by square product from the [4,3,2] single-parity-check matrix with row/column gauge supports and exact center. 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:subsystem_product#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 formal target: subsystem
Reference instances
| Instance | n | k | d |
|---|---|---|---|
| primary | n=16 verified | k=4 verified | d=4 verified |
Scientific scope
Source, page, and formal object are separate identities
Primary entity: eczoo-entity:subsystem_product#collection. Formalization target: eczoo-entity:subsystem_product#collection. Legacy vocabulary: exact class projection.
Source/entity binding: clean.