Calculation record
Invariant trace and Hilbert--Schmidt current metric.
This is an inverse comparison, not a derived master interaction. A positive
trace contribution removes one high-momentum degeneracy of the original
norm while preserving the coherent frequencies. The current at zero still
requires a physical prescription.
Research context
- A trace contribution to the mass current
Adding a trace contraction preserves coherent simplex frequencies and the common core, removes a high-momentum secular degeneracy, and gives a positive conserved norm for the constant far-field linearization; master selection and full spatial stability remain open.
Interpret numerical checks within the assumptions and limitations documented in these notes.