The Capacity of the Quantum Multiple Access Channel

Abstract

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.

7 pages, requires IEEEtran2e.cls

References in corpus (3)

• Coding Theorem and Strong Converse for Quantum Channels
• Quantum Information Theory of Entanglement and Measurement
• Classical Capacity of A Quantum Multiple Access Channel

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