What v2.0 adds
One controlled compact-phase trimer Hamiltonian yields the tree no-go, cubic spectrum, exact scale-free invariant, codimension-one prediction, common load--response derivative, exact loss instrument, passive response, numerical witness, external figure comparison, and frozen raw-data protocol; an optional autonomous rotor is delimited separately.
Strongest supported conclusion
An externally controlled compact phase threading a symmetric three-mode loop yields a tree-phase no-go theorem, exact cubic spectrum, scale-free invariant I=cosθ, codimension-one prediction, common loading--response derivative, exact loss instrument, and passive three-port realization. A separately stated autonomous rotor is outside the finite frozen-phase spectral claims. A 1001-phase deterministic witness verifies the identities, invariances, gradient, unitarity, Kraus completeness, and passivity. Thirty-nine digitized points from Roushan et al. (2017) give invariant RMSE 0.02464, but absent raw covariance the comparison is retrospective concordance rather than likelihood confirmation. A twelve-phase raw-data rejection protocol and open-chain null control are frozen.
- Question
- an exact compact-holonomy spectrum and a parameter-free experimental test
- Result family
- HB, GT, IF, CP, CM realization source and test
- Release status
- Added foundational paper in v2.0
Open paper guide