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arXiv · 0903.0750

Confidential direct communications: a quantum approach using continuous variables

Stefano Pirandola·Samuel L. Braunstein·Seth Lloyd·Stefano Mancini
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Abstract

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 [S. Pirandola et al., Europhys. Lett. 84, 20013 (2008)]. Here, we analyze the degree of privacy of this technique against a broader class of attacks, which includes non-Gaussian eavesdropping.

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Stefano Pirandola, Samuel L. Braunstein, Seth Lloyd, Stefano Mancini. 2009-03-04. Confidential direct communications: a quantum approach using continuous variables. https://doi.org/10.1109/jstqe.2009.2021147

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