The capacity of the quantum multiple-access channel

AJ Winter

Research output: Contribution to journalArticle (Academic Journal)

51 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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