collaborators

11 papers

quant-ph2026

Phase-error estimation for quantum key distribution with leaky receivers

Álvaro Navarrete, Margarida Pereira, Guillermo Currás-Lorenzo +3

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-ref…

quant-ph2026

Finite-key security analysis of decoy-state QKD with source and detector imperfections

Xoel Sixto, Guillermo Currás-Lorenzo, Margarida Pereira +3

Decoy-state quantum key distribution (QKD) is the most widely adopted approach for overcoming the limitations of imperfect single-photon sources. However, existing security proofs…

quant-ph2026

Numerical security analysis for practical quantum key distribution

Álvaro Navarrete, Guillermo Currás-Lorenzo, Margarida Pereira +1

Quantum key distribution (QKD) promises information-theoretic security based on quantum mechanics and idealized device models. Practical implementations, however, deviate from thes…

quant-ph2026

Security of decoy-state quantum key distribution with correlated bit-and-basis encoders

Guillermo Currás-Lorenzo, Guillermo Currás-Lorenzo, Margarida Pereira +3

Practical quantum key distribution (QKD) modulators inevitably introduce correlations, causing the state emitted in a given round to depend on the setting choices made in previous…

quant-ph2026

Security framework for quantum key distribution with imperfect sources

Guillermo Currás-Lorenzo, Margarida Pereira, Go Kato +2

Imperfect bit-and-basis encoders compromise the security of quantum key distribution (QKD) systems via modulation flaws, side channels and inter-pulse correlations, which invalidat…

quant-ph2026

Rigorous phase-error-estimation security framework for QKD with correlated sources

Guillermo Currás-Lorenzo, Margarida Pereira, Kiyoshi Tamaki +1

Practical QKD modulators introduce correlations between consecutively emitted pulses due to bandwidth limitations, violating key assumptions underlying many security proof techniqu…