Tomographic quantum cryptography: equivalence of quantum and classical key distillation

The security of a cryptographic key that is generated by communication through a noisy quantum channel relies on the ability to distill a shorter secure key sequence from a longer insecure one. For an important class of protocols, which exploit tomographically complete measurements on entangled pair...

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Veröffentlicht in:	Physical review letters 2003-08, Vol.91 (9), p.097901-097901, Article 097901
Hauptverfasser:	Bruss, Dagmar, Christandl, Matthias, Ekert, Artur, Englert, Berthold-Georg, Kaszlikowski, Dagomir, Macchiavello, Chiara
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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