Ab Initio Architectonics: Rethinking Fluxonium Qutrits through the Signal-Worker Ontology

The current paradigm of quantum computing is increasingly constrained by a reliance on emergent quasiparticle ontologies and “epistemic patches” that obscure the underlying ab initio dynamics of quantum materials. This paper proposes a radical realignment through the “Signal-Worker” (S-W) framework, which distinguishes between fundamental fermionic workers (electrons) and bosonic signals (photons/forces). We critique the artificial truncation of fluxonium qutrit arrays and contrast them with the passive structural coherence of twistronic and Kagome lattices. Our methodology introduces the Lossless Complexity Index (LCI) as a definitive metric for “architectural intelligence,” with a generalized derivation based on the spectral entropy of the lattice. We identify a “Goldilocks zone” at LCI=1.83 where structural coherence maximizes quantum stability. Findings indicate that passive structural systems provide a $10^3$ efficiency advantage over active flux-driven architectures, offering a robust roadmap toward high-temperature (77K) operation and a theoretical pathway to ambient-temperature computing. By demonstrating predictive divergence from standard BCS theory, we establish the S-W framework as a necessary foundation for the architectonic era of physics-instantiated computing.