Generalized relative entropies and the capacity of classical-quantum channels

Milan Mosonyi, Nilanjana Datta

Research output: Contribution to journalArticle (Academic Journal)

42 Citations (Scopus)

Abstract

We provide lower and upper bounds on the information transmission capacity of one single use of a classical-quantum channel. The lower bound is expressed in terms of the Hoeffding capacity, which we define similarly to the Holevo capacity but replacing the relative entropy with the Hoeffding distance. Similarly, our upper bound is in terms of a quantity obtained by replacing the relative entropy with the recently introduced max-relative entropy in the definition of the divergence radius of a channel.
Original languageEnglish
Article number072104
Number of pages14
JournalJournal of Mathematical Physics
Volume50
Issue number7
DOIs
Publication statusPublished - Jul 2009

Fingerprint Dive into the research topics of 'Generalized relative entropies and the capacity of classical-quantum channels'. Together they form a unique fingerprint.

  • Cite this