activity
20242026
collaborators

11 papers

quant-ph2026

Simplified quantum key distribution implementation secure in the presence of state preparation flaws

Ainhoa Agulleiro, Fadri Grünenfelder, Raphaël Houlmann +3

We present an implementation of a three-state BB84 protocol with time-bin encoding, one decoy state and a simplified measurement scheme that uses passive basis choice. Our system s…

quant-ph2026

Daylight quantum keyless private communication for free-space links

Pedro Neto Mendes, Preeti Yadav, Lourenço Sumares +3

Quantum key distribution (QKD) is the most established approach in quantum communication. However, long-distance free-space implementations, particularly satellite links, remain ch…

quant-ph2026

Decoy State based Time Synchronization

Lukas Tiefenthaler, Hannah Thiel, Davide Rusca +1

Time synchronization is a crucial requirement in quantum key distribution (QKD)8 protocols, ensuring accurate key generation via the correct assignment of bits of raw key and9 enab…

quant-ph2026

Reference-Beam Attacks against Twin-Field Quantum Key Distribution using Optical Injection Locking

Sergio Juárez, Alessandro Marcomini, Mikhail Petrov +5

Twin-Field Quantum Key Distribution (TF-QKD) has become a leading protocol to bring quantum communications to the national scale. The protocol requires the establishment of a share…

quant-ph2026

Quantum correlations in prepare-and-measure scenarios and their semi-device-independent applications

Jonatan Bohr Brask, Nicolas Brunner, Jef Pauwels +2

A key aspect in quantum information is to understand the advantage offered by quantum systems over classical ones in communication tasks. In recent years, a fundamental approach to…

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…