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arXiv · 1004.0052

For quantum information, two wrongs can make a right

Jonathan Oppenheim
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Abstract

Superactivation is the phenomenon where two quantum channels which individually have zero-capacity can have positive capacity when used together. The perspective given here provides an intuitive explanation of this discovery by Smith and Yard, and gives a protocol to activate any private channel.

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Jonathan Oppenheim. 2010-04-01. For quantum information, two wrongs can make a right. https://doi.org/10.1126/science.1164543

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