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DOE OSTI · 1170733

Method for adding nodes to a quantum key distribution system

Grice, Warren P
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Abstract

An improved quantum key distribution (QKD) system and method are provided. The system and method introduce new clients at intermediate points along a quantum channel, where any two clients can establish a secret key without the need for a secret meeting between the clients. The new clients perform operations on photons as they pass through nodes in the quantum channel, and participate in a non-secret protocol that is amended to include the new clients. The system and method significantly increase the number of clients that can be supported by a conventional QKD system, with only a modest increase in cost. The system and method are compatible with a variety of QKD schemes, including polarization, time-bin, continuous variable and entanglement QKD.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS

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BibTeXRIS

Grice, Warren P. 2015-02-24. Method for adding nodes to a quantum key distribution system. https://www.osti.gov/biblio/1170733

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