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Paper Abstract and Keywords
Presentation 2014-11-17 15:00
Strong Converse Exponent for Classical-Quantum Channel Coding
Milan Mosonyi (UAB, BME), Tomohiro Ogawa (UEC)
Abstract (in Japanese) (See Japanese page) 
(in English) We determine the exact strong converse exponent of classical-quantum
channel coding, for every rate above the Holevo capacity. Our form of
the exponent is an exact analogue of that by Arimoto and Dueck-K"orner
for classical channels, as a transform of the R'enyi capacities
(divergence spheres) with parameters $alpha>1$. Our exponent is in
terms of the R'enyi capacities corresponding to a quantum version of
the R'enyi divergences, so called the sandwiched R'enyi divergences,
that has been introduced recently. Our result adds to the growing body
of evidence that this new version is the natural definition for the
purposes of strong converse problems.
Keyword (in Japanese) (See Japanese page) 
(in English) strong converse exponent / classical-quantum channel coding / quantum Renyi divergence / / / / /  
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Conference Information
Committee QIT  
Conference Date 2014-11-17 - 2014-11-18 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2014-11-QIT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Strong Converse Exponent for Classical-Quantum Channel Coding 
Sub Title (in English)  
Keyword(1) strong converse exponent  
Keyword(2) classical-quantum channel coding  
Keyword(3) quantum Renyi divergence  
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1st Author's Name Milan Mosonyi  
1st Author's Affiliation UAB Barcelona, BME Budapest (UAB, BME)
2nd Author's Name Tomohiro Ogawa  
2nd Author's Affiliation University of Electro-Communications (UEC)
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Speaker Author-2 
Date Time 2014-11-17 15:00:00 
Presentation Time 20 minutes 
Registration for QIT 
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