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Paper Abstract and Keywords
Presentation 2017-11-16 13:50
[Poster Presentation] BB84 Quantum Key Distribution system with a Dual-Parallel Modulator
Weiyang Zhang, Yu Kadosawa, Akihisa Tomita, Kazuhisa Ogawa, Atsushi Okamoto (Hokkaido Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) The state preparation flaw which is generated by the pulse fluctuation in the signal applied for the phase modulator in BB84 protocol lead to the reduction of the security final key generation rate. We proposed DPM as a robust modulator to the inaccuracy in the applied voltage in BB84 protocol by using optical phase as the encoding technique. We experimentally proved that the key generation rate and the fidelity of the state generated by DPM are better than DDM.
Keyword (in Japanese) (See Japanese page) 
(in English) QKD / BB84 / Phase modulator / Dual-parallel modulator / fidelity / Key generation rate / /  
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Conference Information
Committee QIT  
Conference Date 2017-11-16 - 2017-11-17 
Place (in Japanese) (See Japanese page) 
Place (in English) Saitama University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2017-11-QIT 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) BB84 Quantum Key Distribution system with a Dual-Parallel Modulator 
Sub Title (in English)  
Keyword(1) QKD  
Keyword(2) BB84  
Keyword(3) Phase modulator  
Keyword(4) Dual-parallel modulator  
Keyword(5) fidelity  
Keyword(6) Key generation rate  
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1st Author's Name Weiyang Zhang  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Yu Kadosawa  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Akihisa Tomita  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
4th Author's Name Kazuhisa Ogawa  
4th Author's Affiliation Hokkaido University (Hokkaido Univ.)
5th Author's Name Atsushi Okamoto  
5th Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Speaker Author-1 
Date Time 2017-11-16 13:50:00 
Presentation Time 90 minutes 
Registration for QIT 
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