QUANTUM-OPTICAL EFFICIENCY INDEX · η_Q
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Target: η_Q > 0.90 for GOOD status · 94.7% mean efficiency
🔆 3-Construct System
NHP
Neural Helmholtz Predictor
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PCT
Phase Coherence Tensor (Tr(C))
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PLA
Phase-Locking Algorithm (φ_corr)
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📊 Performance Metrics
Mean QOEI (η_Q)94.7%>90% ✓
Coherence Extension8.7×>5× ✓
Look-ahead Horizon100 μs>50μs ✓
Cross-Regime Drop<4.2%<5% ✓
🎯 QOEI Threshold Reference
η_Q > 0.95🟢 EXCELLENT · Standard coherence monitoring
0.90 – 0.95🟢 GOOD · Periodic phase calibration review
0.80 – 0.90🟡 MODERATE · Phase-locking retuning required
0.65 – 0.80🟠 CRITICAL · Emergency coherence recovery
η_Q < 0.65🔴 COLLAPSE · Immediate channel shutdown