The capacity of the quantum multiple-access channel

AJ Winter

Research output: Contribution to journalArticle (Academic Journal)peer-review

85 Citations (Scopus)


We define classical quantum multiway channels for transmission of classical information, after recent work by Allahverdyan and Saakian. Bounds on the capacity region are derived in a uniform way, which are analogous to the classically known ones, simply replacing Shannon entropy with von Neumann entropy. For the single receiver case (multiple-access channel) the exact capacity region is determined. These results are applied to the case of noisy channels, with arbitrary input signal states. A second issue of this work is the presentation of a calculus of quantum information quantities, based on the algebraic formulation of quantum theory.
Translated title of the contributionThe capacity of the quantum multiple-access channel
Original languageEnglish
Pages (from-to)3059 - 3065
JournalIEEE Transactions on Information Theory
Volume47 (7)
Publication statusPublished - Nov 2001

Bibliographical note

Publisher: IEEE-Inst Electrical Electronic Engineers Inc
Other identifier: IDS Number: 484QD


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