Relating quantum privacy and quantum coherence: An operational approach

I Devetak, AJ Winter

Research output: Contribution to journalArticle (Academic Journal)peer-review

91 Citations (Scopus)

Abstract

Given many realizations of a state or a channel as a resource, two parties can generate a secret key as well as entanglement. We describe protocols to perform the secret key distillation (as it turns out, with optimal rate). Then we show how to achieve optimal entanglement generation rates by "coherent" implementation of a class of secret key agreement protocols, proving the long-conjectured "hashing inequality."
Translated title of the contributionRelating quantum privacy and quantum coherence: An operational approach
Original languageEnglish
Article numberArt no 080501
JournalPhysical Review Letters
Volume93 (8)
Publication statusPublished - Aug 2004

Bibliographical note

Publisher: American Physical Soc
Other identifier: IDS Number: 848MS

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