On the security and degradability of Gaussian channels

Details On the security and degradability of Gaussian channels On the security and degradability of Gaussian channels

2009-03-20

arxiv.org/abs/0903.3441v2

Lecture Notes in Computer Science, Vol. 5906 (2009), pages: 47-55

Physics

Quantum Physics

Proceeding of TQC2009, 4th Workshop on Theory of Quantum Computation, Communication, and Cryptography, Waterloo, Canada, 11-13

Scientific paper

10.1007/978-3-642-10698-9

We consider the notion of canonical attacks, which are the cryptographic
analog of the canonical forms of a one-mode Gaussian channel. Using this
notion, we explore the connections between the degradability properties of the
channel and its security for quantum key distribution. Finally, we also show
some relations between canonical attacks and optimal Gaussian cloners.

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