Strengthened Monotonicity of Relative Entropy via Pinched Petz Recovery Map

The quantum relative entropy between two states satisfies a monotonicity property meaning that applying the same quantum channel to both states can never increase their relative entropy. It is known that this inequality is only tight when there is a recovery map that exactly reverses the effects of...

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Bibliographic Details
Main Authors: Sutter, David, Tomamichel, Marco, Harrow, Aram W
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: Institute of Electrical and Electronics Engineers (IEEE) 2017
Online Access:http://hdl.handle.net/1721.1/108178
https://orcid.org/0000-0003-3220-7682