Bounding the energy-constrained quantum and private capacities of phase-insensitive bosonic Gaussian channels

We establish several upper bounds on the energy-constrained quantum and private capacities of all single-mode phase-insensitive bosonic Gaussian channels. The first upper bound, which we call the ‘data-processing bound,’ is the simplest and is obtained by decomposing a phase-insensitive channel as a...

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Bibliographic Details
Main Authors: Kunal Sharma, Mark M Wilde, Sushovit Adhikari, Masahiro Takeoka
Format: Article
Language:English
Published: IOP Publishing 2018-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/aac11a