Long-range QKD without trusted nodes is not possible with current technology
Bruno Huttner, Romain Alléaume, Eleni Diamanti, Florian Fröwis, Philippe Grangier, Hannes Hübel, Vicente Martín, Andreas Poppe, Joshua A. Slater, Timothy P. Spiller, Wolfgang Tittel, Benoit Tranier, A. Wonfor, Hugo Zbinden
Abstract
A recently published patent ( https://www.ipo.gov.uk/p-ipsum/Case/PublicationNumber/GB2590064 ) has claimed the development of a novel quantum key distribution protocol purporting to achieve long-range quantum security without trusted nodes and without use of quantum repeaters. Here we present a straightforward analysis of this claim, and reach the conclusion that it is largely unfounded.
Topics & Concepts
Quantum key distributionComputer scienceProtocol (science)Computer securityQuantum cryptographyKey (lock)Quantum computerQuantumRange (aeronautics)Computer networkQuantum informationPhysicsEngineeringQuantum mechanicsMedicineAlternative medicineAerospace engineeringPathologyQuantum Information and CryptographyQuantum Computing Algorithms and ArchitectureQuantum Mechanics and Applications