On capacities of quantum channels

Masanori Ohya, D. Petz, Noboru Watanabe

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Capacities of quantum mechanical channels are defined in terms of mutual information quantities. Geometry of the relative entropy is used to express capacity as a divergence radius. The symmetric quantum spin 1/2 channel and the attenuation channel of Boson fields are discussed as examples.

Original languageEnglish
Title of host publicationSelected Papers of M. Ohya
PublisherWorld Scientific Publishing Co.
Pages291-308
Number of pages18
ISBN (Print)9789812794208, 9812794190, 9789812794192
DOIs
Publication statusPublished - Jan 1 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Ohya, M., Petz, D., & Watanabe, N. (2008). On capacities of quantum channels. In Selected Papers of M. Ohya (pp. 291-308). World Scientific Publishing Co.. https://doi.org/10.1142/9789812794208_0019