Spectroscopic Search for Topological Protection in Open Quantum Hardware: The Dissipative Mixed Hodge Module Approach

Standard spectroscopic protocols model the dynamics of open quantum systems as a superposition of isolated, exponentially decaying eigenmodes. This paradigm fails fundamentally at Exceptional Points, where the eigenbasis collapses and the response becomes dominated by non-diagonalizable Jordan blocks. We resolve this ambiguity by introducing a geometric framework based on $\mathit{\text{Dissipative}}\mathit{\text{Mixed}}\mathit{\text{Hodge}}\mathit{\text{Modules}}$ (DMHM). By replacing the scalar linewidth with a topological $\mathit{\text{Weight}}\mathit{\text{Filtration}}$, we derive ``Weight Filtered Spectroscopy’’ (WFS)–a protocol that spatially separates decay channels based on the nilpotency rank of the Liouvillian. We demonstrate that WFS acts as a dissipative x-ray, quantifying dissipative leakage in molecular polaritons and certifying topological isolation in Non-Hermitian Aharonov-Bohm rings. This establishes that topological protection persists as an algebraic invariant even when the spectral gap is closed.