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Proceedings Paper

On entropic quantities related to the classical capacity of infinite dimensional quantum channels
Author(s): M. E. Shirokov
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Paper Abstract

The χ-function (the Holevo capacity of constrained channel) and the convex closure of the output entropy for arbitrary infinite dimensional channel are considered. The properties of the χ-function and of the convex closure of the output entropy are explored. The applications of the obtained results to the additivity problem and to the theory of entanglement are presented.

Paper Details

Date Published: 1 June 2005
PDF: 7 pages
Proc. SPIE 5833, Quantum Informatics 2004, (1 June 2005); doi: 10.1117/12.620512
Show Author Affiliations
M. E. Shirokov, Steklov Mathematical Institute (Russia)


Published in SPIE Proceedings Vol. 5833:
Quantum Informatics 2004
Yuri I. Ozhigov, Editor(s)

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