Confidential Direct Communications: A Quantum Approach Using Continuous Variables
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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.
Date issued
2009-03Department
Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. Research Laboratory of Electronics; W. M. Keck Foundation Center for Extreme Quantum Information TheoryJournal
IEEE Journal of Selected Topics in Quantum Electronics
Publisher
Institute of Electrical and Electronics Engineers
Citation
Pirandola, S. et al. “Confidential Direct Communications: A Quantum Approach Using Continuous Variables.” Selected Topics in Quantum Electronics, IEEE Journal of 15.6 (2009): 1570-1580. © 2009 Institute of Electrical and Electronics Engineers.
Version: Final published version
Other identifiers
INSPEC Accession Number: 11004962
ISSN
1077-260X
Keywords
security, quantum communication, non-Gaussian attacks, error correction, continuous variables, Gaussian states, Cloning