SixVertex — model index

Classical six-vertex model on the infinite square lattice in the standard (a, b, c) parameterisation (Lieb 1967, Baxter 1982 ch. 8):

ω₁ = ω₂ = a,   ω₃ = ω₄ = b,   ω₅ = ω₆ = c
Δ = (a² + b² − c²) / (2 a b)
Provisional v2 view — RES not wired

Generated by docs/atlas/generate.jl — a pure VIEW over the *_registry.jl claims + the static test/INVENTORY.jsonl AST scan. No test is executed and no src is run; test/INVENTORY.jsonl is regenerated in-place (idempotently) from that static scan; fetch/@register untouched. Assurance labels are PROVISIONAL: residuals / confidence are not shown yet (RES not wired). Badges reflect the committed test AST, not the latest CI run — a hub can read green while its @test is red between regenerations. @sweep = a graceful regime-resolution gap, not card omission.

All (Quantity, BC) hubs src claims for SixVertex. Cells link to the per-hub card; = not yet implemented at that BC. The shape of the matrix is the gap visualisation: empty cells are where physics could be added next.

Convention

FieldValue
Hamiltoniansee file-header description above
Observableper src/core/quantities.jl (matches the dispatch tag)
Referencedocs/src/conventions.md (project-wide convention policy)
STATUSbackfilled by PR (audit gate); per-field domain content

Coverage

LevelCount
🟣 universality-corroborated0
🟢 corroborated-at-p2
🔵 coherent1
⚪ cited-only0
🟠 uncorroborated-but-feasible2
total claimed hubs5

Methods (from @register, derived): analytic, numerical

Quantity × BC matrix

QuantityInfinite
Energy🟠 hub
FreeEnergy🟢 hub
Polarization🔵 hub
ResidualEntropy🟢 hub
UniversalityClass🟠 hub

References

Papers cited by this model's @register cards. The full numbered list is on the Reference List.

[62]
R. J. Baxter. Exactly Solved Models in Statistical Mechanics (Academic Press, 1982).
[123]
E. H. Lieb. Exact Solution of the Problem of the Entropy of Two-Dimensional Ice. Physical Review Letters 18, 692–694 (1967).
[125]
E. H. Lieb. Exact Solution of the F Model of an Antiferroelectric. Physical Review Letters 18, 1046–1048 (1967).
[124]
E. H. Lieb. Exact Solution of the Two-Dimensional Slater KDP Model of a Ferroelectric. Physical Review Letters 19, 108–110 (1967).
[126]
B. Sutherland. Exact Solution of a Two-Dimensional Model for Hydrogen-Bonded Crystals. Physical Review Letters 19, 103–104 (1967).

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