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Paper Abstract and Keywords
Presentation 2016-05-30 10:10
Quantum key distribution protocol with slow basis choice
Toshihiko Sasaki (U Tokyo), Kiyoshi Tamaki (NTT), Masato koashi (U Tokyo)
Abstract (in Japanese) (See Japanese page) 
(in English) In order to improve the key generation rate of the quantum key distribution (QKD) protocols, we try to
make the signal repetition rate as high as possible. On the other hand, the basis of the apparatuses is supposed to be
rerolled every repetition. It means that we consume the random numbers rapidly and have to make the apparatuses from the elements having the quick response. We show that if the QKD protocol satisfies the specific conditions, we can construct its modified version where we do not reroll the basis every repetition and prove its security. We also show that its key generation rate is almost the same if we decrease the rate of basis changes to the rate of the detections. It allows us to decrease the consumption of the random numbers and to use the slow devices at the
receiver’s side.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum key distribution / Quantum information / / / / / /  
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Conference Information
Committee QIT  
Conference Date 2016-05-30 - 2016-05-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Kochi University of Technology Eikokuji campus 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2016-05-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quantum key distribution protocol with slow basis choice 
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Keyword(1) Quantum key distribution  
Keyword(2) Quantum information  
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1st Author's Name Toshihiko Sasaki  
1st Author's Affiliation The university of Tokyo (U Tokyo)
2nd Author's Name Kiyoshi Tamaki  
2nd Author's Affiliation NTT (NTT)
3rd Author's Name Masato koashi  
3rd Author's Affiliation The university of Tokyo (U Tokyo)
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Speaker Author-1 
Date Time 2016-05-30 10:10:00 
Presentation Time 20 minutes 
Registration for QIT 
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