Activation and superactivation of single-mode Gaussian quantum channels

Activation of quantum capacity is a surprising phenomenon according to which the quantum capacity of a certain channel may increase by combining it with another channel with zero quantum capacity. Superactivation describes an even more particular occurrence, in which both channels have zero quantum...

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Bibliographic Details
Main Authors: Lim, Youngrong, Takagi, Ryuji, Adesso, Gerardo, Lee, Soojoon
Other Authors: Massachusetts Institute of Technology. Center for Theoretical Physics
Format: Article
Language:English
Published: American Physical Society 2019
Online Access:https://hdl.handle.net/1721.1/121249