activity
20242026
collaborators

5 papers

quant-ph2026

A consolidated and accessible security proof for finite-size decoy-state quantum key distribution

Jerome Wiesemann, Jan Krause, Devashish Tupkary +3

In recent years, quantum key distribution (QKD) has evolved from a scientific research field to a commercially available security solution, supported by mathematically formulated s…

quant-ph2025

Dynamic rerouting and interruption resilience of quantum communication via single-photon-based resynchronization

Jan Krause, Stephanie Renneke, Jonas Hilt +5

We present a resynchronization method for quantum key distribution (QKD) systems that enables rapid and reliable recovery from interruptions of the quantum channel and changes of i…

quant-ph2025

Exponential-recovery model for free-running SPADs with capacity-induced dead-time imperfections

Jan Krause, Nino Walenta

Current count-rate models for single-photon avalanche diodes (SPADs) typically assume an instantaneous recovery of the quantum efficiency following dead-time, leading to a systemat…

quant-ph2024

Evaluation of quantum key distribution systems against injection-locking attacks

Jerome Wiesemann, Fadri Grünenfelder, Ana Blázquez +2

While ideal quantum key distribution (QKD) systems are well-understood, practical implementations face various vulnerabilities, such as side-channel attacks resulting from device i…

quant-ph2024

Ad-hoc hybrid-heterogeneous metropolitan-range quantum key distribution network

Matthias Goy, Jan Krause, Ömer Bayraktar +37

This paper presents the development and implementation of a versatile ad-hoc metropolitan-range Quantum Key Distribution (QKD) network. The approach presented integrates various ty…