Confidential Direct Communications: A Quantum Approach Using Continuous Variables

TY - JOUR

T1 - Confidential Direct Communications: A Quantum Approach Using Continuous Variables

AU - Pirandola, Stefano

AU - Braunstein, Samuel L.

AU - Lloyd, Seth

AU - Mancini, Stefano

PY - 2009/11

Y1 - 2009/11

N2 - We consider the problem of privacy in direct communications, showing how quantum mechanics can be useful to guarantee a certain level of confidentiality. In particular, we review a continuous variable approach recently proposed by us [Pirandola et al., Europhys. Lett., vol. 84, pp. 20013-1-20013-6, 2008]. Here, we analyze the degree of privacy of this technique against a broader class of attacks, which includes non-Gaussian eavesdropping.

AB - We consider the problem of privacy in direct communications, showing how quantum mechanics can be useful to guarantee a certain level of confidentiality. In particular, we review a continuous variable approach recently proposed by us [Pirandola et al., Europhys. Lett., vol. 84, pp. 20013-1-20013-6, 2008]. Here, we analyze the degree of privacy of this technique against a broader class of attacks, which includes non-Gaussian eavesdropping.

KW - Cloning

KW - continuous variables

KW - error correction

KW - Gaussian states

KW - non-Gaussian attacks

KW - quantum communication

KW - security

KW - CRYPTOGRAPHY

UR - http://www.scopus.com/inward/record.url?scp=72149102450&partnerID=8YFLogxK

U2 - 10.1109/JSTQE.2009.2021147

DO - 10.1109/JSTQE.2009.2021147

M3 - Article

SN - 1077-260X

VL - 15

SP - 1570

EP - 1580

JO - IEEE Journal of Selected Topics in Quantum Electronics

JF - IEEE Journal of Selected Topics in Quantum Electronics

IS - 6

M1 - 5175331

ER -