8 papers
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…
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…
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…
Optimal key rates for quantum key distribution with partial source characterization
Margarida Pereira, Guillermo Currás-Lorenzo, Mateus Araújo
Numerical security proofs based on conic optimization are known to deliver optimal secret-key rates, but so far they have mostly assumed that the emitted states are fully character…
Modeling and Characterization of Arbitrary Order Pulse Correlations for Quantum Key Distribution
Ainhoa Agulleiro, Fadri Grünenfelder, Margarida Pereira +4
In quantum key distribution (QKD) implementations, memory effects caused by the limited bandwidth of modulators and/or other active devices can leak information about previous sett…
Numerical security analysis for quantum key distribution with partial state characterization
Guillermo Currás-Lorenzo, Álvaro Navarrete, Javier Núñez-Bon +2
Numerical security proofs offer a versatile approach for evaluating the secret-key generation rate of quantum key distribution (QKD) protocols. However, existing methods typically…