Long-Range QKD without Trusted Nodes is Not Possible with Current Technology

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.

9 pages, 2 figures and 1 table

References in corpus (1)

• Distributed Symmetric Key Establishment: A scalable, quantum-proof key distribution system

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