On the Security and Degradability of Gaussian Channels

TY - JOUR

T1 - On the Security and Degradability of Gaussian Channels

AU - Pirandola, Stefano

AU - Braunstein, Samuel L.

AU - Lloyd, Seth

PY - 2009

Y1 - 2009

N2 - 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.

AB - 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.

KW - QUANTUM CRYPTOGRAPHY

KW - CONTINUOUS-VARIABLES

KW - COMMUNICATION

KW - INFORMATION

KW - CAPACITY

KW - STATES

KW - Gaussian channels

UR - http://www.scopus.com/inward/record.url?scp=77951448319&partnerID=8YFLogxK

U2 - 10.1007/978-3-642-10698-9_5

DO - 10.1007/978-3-642-10698-9_5

M3 - Article

SN - 0302-9743

VL - 5906

SP - 47

EP - 55

JO - Lecture Notes in Computer Science

JF - Lecture Notes in Computer Science

ER -