Author

Akihiro Mizutani

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Preprint Aug 2026

Phase-error estimation for quantum key distribution with leaky receivers

Practical quantum key distribution (QKD) receivers may leak information about their measurement outcomes and settings to the channel (e.g., through detector backflashes or back-reflected Trojan-horse light) that could compromise the protocol's security. Here we present a simple finite-key security proof based on phase-...

Álvaro Navarrete, Margarida Pereira, Guillermo Currás-Lorenzo et al. · 0 citations

Preprint Jul 2026

Deterministic QKD source robust against side-channel attacks

Quantum key distribution (QKD) is secure in principle, but practical security can be undermined by discrepancies between real devices and the idealized models assumed in security proofs. Source side channels, including those exploited by Trojan-horse attacks, are particularly detrimental: neglecting them compromises im...

Kiyoshi Tamaki, M. Curty, Akihiro Mizutani et al. · 0 citations