Loss Tolerance Simulator

Model per-component optical loss and identify critical thresholds for entanglement preservation

Loss Channel Model

Optical loss is modeled as a beamsplitter mixing with vacuum:

Vlossy = η Videal + (1-η) Vvac

η = 10^(-loss_dB/10) per component

Critical threshold (~0.7 dB/layer):

  • Below threshold: Full entanglement preserved
  • At threshold: Marginal performance
  • Above threshold: Rapid degradation

Configuration

Results

Total Loss
2.0 dB
Total Efficiency η
63.1%
Avg Nullifier Variance
0.58 SNU
Entangled Modes
8/8

Variance vs Loss per Layer

Mode-wise Variance