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Paper Abstract and Keywords
Presentation 0000-00-00 00:00
[Poster Presentation] Analysis of the effects of the two-photon temporal distinguishability on measurement-device-independent quantum key distribution
Haobo Ge, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.), Kazuhisa Ogawa (Osaka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Measurement-device-independent quantum key distribution (MDI-QKD) protects the receiver from attacks against the measurement devices. Decoy method allows the unconditionally secure quantum key generation with lasers. However, two independent lasers for MDI-QKD have to send indistinguishable photons. According to the HOM interference occurring at the relay, time delay between two photons has the greatest effect on the distinguishability. In this report, we will discuss the effects of the two-photon temporal distinguishability in terms of the visibility of the HOM-dip of two photons on the final key rate of finite size MDI-QKD by simulation. The acceptable time delay range is estimated.
Keyword (in Japanese) (See Japanese page) 
(in English) MDI-QKD / decoy method / Hong-Ou-Mandel interference / time delay / / / /  
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Conference Information
Committee QIT  
Conference Date 2021-11-30 - 2021-12-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Quantum Information 
Paper Information
Registration To QIT 
Conference Code 2021-11-QIT 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of the effects of the two-photon temporal distinguishability on measurement-device-independent quantum key distribution 
Sub Title (in English)  
Keyword(1) MDI-QKD  
Keyword(2) decoy method  
Keyword(3) Hong-Ou-Mandel interference  
Keyword(4) time delay  
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1st Author's Name Haobo Ge  
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.)
4th Author's Name Kazuhisa Ogawa  
4th Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 0000-00-00 00:00:00 
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