One-sided device-independent quantum key distribution: Security, feasibility, and the connection with steering

We analyze the security and feasibility of a protocol for quantum key distribution (QKD) in a context where only one of the two parties trusts his measurement apparatus. This scenario lies naturally between standard QKD, where both parties trust their measurement apparatuses, and device-independent...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Jg. 85; H. 1
Hauptverfasser: Branciard, Cyril, Cavalcanti, Eric G., Walborn, Stephen P., Scarani, Valerio, Wiseman, Howard M.
Format: Journal Article
Sprache:Englisch
Veröffentlicht: American Physical Society 01.01.2012
Schlagworte:
Feasibility
Inequalities
Joints
Keys
Links
Physics
Security
Steering
numbers: 03.67.Dd 03.65.Ud 03.67.Mn
03.67.Mn
numbers: 03.67.Dd
03.65.Ud
ISSN:1050-2947, 1094-1622
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Zusammenfassung:We analyze the security and feasibility of a protocol for quantum key distribution (QKD) in a context where only one of the two parties trusts his measurement apparatus. This scenario lies naturally between standard QKD, where both parties trust their measurement apparatuses, and device-independent QKD (DI-QKD), where neither do, and can be a natural assumption in some practical situations. We show that the requirements for obtaining secure keys are much easier to meet than for DI-QKD, which opens promising experimental opportunities. We clarify the link between the security of this one-sided DI-QKD scenario and the demonstration of quantum steering, in analogy to the link between DI-QKD and the violation of Bell inequalities.
Bibliographie:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.85.010301