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Paper Abstract and Keywords
Presentation 2022-12-08 14:00
[Poster Presentation] Quantum State Generation using DPQPSK Modulator for High Speed Quantum Key Distribution
Yuki Sugawara, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In implementing a high-speed QKD system, distortions in the modulation signal degrade the performance of the QKD system. It is known that the use of a dual parallel modulator (DPM) can suppress the effect of distortions in the modulation signal. However, quantum state generation using the decoy method, which is important in the current implementation of QKD system, has not been considered. In this paper, we show that it is possible to generate quantum states for the decoy-three state protocol with a single DPQPSK modulator.
Keyword (in Japanese) (See Japanese page) 
(in English) Quantum Key Distribution / Decoy method / DPQPSK Modulator / Three state protocol / / / /  
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Conference Information
Committee QIT  
Conference Date 2022-12-08 - 2022-12-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Keio Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2022-12-QIT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quantum State Generation using DPQPSK Modulator for High Speed Quantum Key Distribution 
Sub Title (in English)  
Keyword(1) Quantum Key Distribution  
Keyword(2) Decoy method  
Keyword(3) DPQPSK Modulator  
Keyword(4) Three state protocol  
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1st Author's Name Yuki Sugawara  
1st Author's Affiliation Hokkaido University (Hokkaido Univ.)
2nd Author's Name Akihisa Tomita  
2nd Author's Affiliation Hokkaido University (Hokkaido Univ.)
3rd Author's Name Atsushi Okamoto  
3rd Author's Affiliation Hokkaido University (Hokkaido Univ.)
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Date Time 2022-12-08 14:00:00 
Presentation Time 60 minutes 
Registration for QIT 
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