91 citations · 179 across the 17 of their papers we have counts for
5 papers · 1 filter
Phase error estimation for passive detection setups with imperfections and memory effects
Zhiyao Wang, Devashish Tupkary, Shlok Nahar
We develop a generic framework to bound the phase error rate for quantum key distribution protocols using passive detection setups with imperfections and memory effects. This frame…
Security of quantum key distribution with source and detector imperfections through phase-error estimation
Guillermo Currás-Lorenzo, Margarida Pereira, Shlok Nahar +1
Quantum key distribution promises information-theoretic security, but practical implementations face vulnerabilities due to device imperfections. Existing security proofs typically…
Imperfect detectors for adversarial tasks with applications to quantum key distribution
Shlok Nahar, Devashish Tupkary, Norbert Lütkenhaus
Security analyses in quantum key distribution (QKD) and other adversarial quantum tasks often assume perfect device models. However, real-world implementations often deviate from t…
Improved finite-size effects in QKD protocols with applications to decoy-state QKD
Lars Kamin, Devashish Tupkary, Norbert Lütkenhaus
We present a finite-size security proof for generic quantum key distribution protocols against independent and identically distributed collective attacks and extend it to coherent…
Security proofs for practical QKD: variations, techniques, gaps, and limitations
Devashish Tupkary, Ernest Y. -Z. Tan, Shlok Nahar +2
We review the current status of security proofs for practical decoy-state Quantum Key Distribution using the BB84 protocol, focusing on optical implementations with weak coherent p…