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 contribution||The capacity of the quantum multiple-access channel|
|Pages (from-to)||3059 - 3065|
|Journal||IEEE Transactions on Information Theory|
|Publication status||Published - Nov 2001|
Bibliographical notePublisher: IEEE-Inst Electrical Electronic Engineers Inc
Other identifier: IDS Number: 484QD