197 decoherenceTime ⟨typicalSCQubit.env_modes, 0.5, by norm_num, by norm_num⟩ 198 199/-! ## The Gap-45 Threshold in Practice -/ 200 201/-- Number of modes to cross from quantum to classical (Gap-45 crossover). 202 For τ_target = 1 s (human scale), coupling = 1: 203 N ≈ 45 × ln(10) / ln(φ) ≈ 45 × 2.3 / 0.48 ≈ 215 -/
depends on (12)
Lean names referenced from this declaration's body.