Superfluid transition in helium-4

Structural Challenge

This response is paired with its canonical Structural Challenge: Superfluid transition in helium-4 (P084) in the Physics Structural Challenge Ledger.

τ response

Evidence route

This response is supported by 6 canonical registry items in the τ Corpus.

• IV.P230 — He-4 Minimal Donut Criterion direct problem account confidence: high
• IV.P293 — He-4 Superfluid from T2 direct problem account confidence: high
• IV.P251 — BBN Abundances downstream application confidence: medium
• V.D192 — He-4 Packing Maximum bridge structure confidence: medium
• V.D195 — Primordial He-4 Mass Fraction downstream application confidence: medium
• V.T108 — Nucleosynthesis from tau formalization support confidence: medium

Notes

Verification

• Verification routeempirical_accountability
• Verification statuspending_external_review
• External statusexternally_open

External-review boundary

External condensed-matter review of the τ formulation; comparison against experiments covering high-Tc superconductivity, strongly-correlated electrons, and topological / quantum-Hall systems.

Provenance

• v1 predecessorphys-superfluid-transition-in-helium-4 (promoted one to one)
• v1 mapping recovered fromf534b3fb^

Status disclaimer

A Challenge Response reports the program's current internal stance against a canonical Structural Challenge. It does not imply external verification, scientific consensus, philosophical settlement, or final proof. Read it together with its evidence route, registry references, verification status, and external-review boundary.