Quantum data locking for high-rate private communication

We show that, if the accessible information is used as a security quantifier, quantum channels with a certain symmetry can convey private messages at a tremendously high rate, as high as less than one bit below the rate of non-private classical communication. This result is obtained by exploiting th...

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Bibliographic Details
Main Authors: Lupo, Cosmo, Lloyd, Seth
Other Authors: Massachusetts Institute of Technology. Department of Mechanical Engineering
Format: Article
Language:en_US
Published: IOP Publishing 2015
Online Access:http://hdl.handle.net/1721.1/97095
https://orcid.org/0000-0002-5227-4009