Paper 6 — Quantum-Enhanced Verification Thresholds

This paper identifies the conditions under which quantum-enhanced sensing meaningfully changes the cost‐precision tradeoff for continuous physical asset verification. Building on the Verification Complexity Index introduced in Paper 5, we establish thresholds where classical sensing strategies hit fundamental measurement limits and where quantum primitives (squeezed states, entanglement-enhanced detection, quantum metrology techniques) become economically necessary rather than merely theoretically interesting. Particular attention is paid to high-σ² (high-uncertainty) asset classes such as carbon stocks, biomass density, and distributed-sensor networks where measurement precision dominates verification cost.