4 papers
Quantum Key Distribution Beyond Stationary Channels
Vaisakh Mannalath, VÃctor Zapatero, Kiyoshi Tamaki +1
Quantum key distribution (QKD) over non-stationary channels, such as satellite links, is characterized by short, high-loss, and strongly fluctuating transmission windows that produ…
Finite-key feasibility of geostationary quantum key distribution
Vaisakh Mannalath, VÃctor Zapatero, Marcos Curty
Quantum key distribution (QKD) via geostationary Earth orbit (GEO) satellites offers a compelling route to continuous, continental-scale secure communications. However, operation i…
Elementary Tail Bounds on the Hypergeometric Distribution
Vaisakh Mannalath, VÃctor Zapatero, Marcos Curty
We use a simple method to derive two concentration bounds on the hypergeometric distribution. Comparison with existing results illustrates the advantage of these bounds across diff…
Sharp finite statistics for quantum key distribution
Vaisakh Mannalath, VÃctor Zapatero, Marcos Curty
The performance of quantum key distribution (QKD) heavily depends on statistical inference. For a broad class of protocols, the central statistical task is a random sampling proble…