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Deployment of Entanglement-Based QKD in Financial Infrastructure
Mirela Selimović, Roman Solar, Jonathan Gruner +6
We demonstrate the feasibility of entanglement-based quantum key distribution (eQKD) in high-security financial infrastructure over a 22 km fiber link with 8 dB loss between two da…
Quantum Key Distribution with Imperfections: Recent Advances in Security Proofs
Patrick Andriolo, Esteban Vasquez, Elizabeth Agudelo +3
In contrast to classical public-key cryptosystems, where the security of encoded messages relies on on computational assumptions, Quantum Key Distribution (QKD) enables two distant…
Tighter Asymptotic Key Rates for Intensity-Correlated Decoy-State QKD via Nonlinear Programming
Matej Pivoluska, Mateus Araújo
Decoy-state QKD with phase-randomized weak coherent pulses is typically analyzed assuming independent, precisely prepared intensities. Real sources, however, can exhibit correlated…
Harnessing high-dimensional temporal entanglement using limited interferometric setups
Alexandra Bergmayr, Florian Kanitschar, Matej Pivoluska +1
High-dimensional entanglement has shown to have significant advantages in quantum communication. It is available in many degrees of freedom and in particular in the time-domain rou…
Resource-efficient utilization of quantum computers
Ijaz Ahamed Mohammad, Matej Pivoluska, Martin Plesch
The current state of quantum computing is commonly described as the Noisy Intermediate-Scale Quantum era. Available computers contain a few dozens of qubits and can perform a few d…
Improved noise resistance analysis for path-entangled subspace quantum key distribution
Oskár Adam Válent, Matej Pivoluska
We revisit the practical implementation of high-dimensional quantum key distribution protocol using path entanglement reported in [Phys.Rev.Lett.~127,~110505,~2021]. Here we refine…