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Quantum Information Processing
Published in: Quantum Information Processing 3/2016

01-03-2016

Coherent state quantum key distribution based on entanglement sudden death

Authors: Gregg Jaeger, David Simon, Alexander V. Sergienko

Published in: Quantum Information Processing | Issue 3/2016

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Abstract

A method for quantum key distribution (QKD) using entangled coherent states is discussed which is designed to provide key distribution rates and transmission distances surpassing those of traditional entangled photon pair QKD by exploiting entanglement sudden death. The method uses entangled electromagnetic signal states of ‘macroscopic’ average photon numbers rather than single photon or entangled photon pairs, which have inherently limited rate and distance performance as bearers of quantum key data. Accordingly, rather than relying specifically on Bell inequalities as do entangled photon pair-based methods, the security of this method is based on entanglement witnesses and related functions.
previous article Efficiency of quantum energy teleportation within spin- particle pairs
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Metadata
Title
Coherent state quantum key distribution based on entanglement sudden death
Authors
Gregg Jaeger
David Simon
Alexander V. Sergienko
Publication date
01-03-2016
Publisher
Springer US
Published in
Quantum Information Processing / Issue 3/2016
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-015-1063-4

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