VOA-induced luminescence in chip-based QKD creates a spectrally separated side channel enabling information leakage even from weak emission without disturbing quantum states.
K.et al.A modulator-free quantum key distri- bution transmitter chip.npj Quantum Inf.5, 42 (2019)
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Security Risks of VOA-Induced Luminescence in Chip-Based quantum key distribution
VOA-induced luminescence in chip-based QKD creates a spectrally separated side channel enabling information leakage even from weak emission without disturbing quantum states.