Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Estimation of Phase Errors without the Gaussian Approximation and Improvement of the Secure Key Rate of BB84 Protocol

Kenta Sakakibara, 隆太郎 松本, Ryutaroh Matsumoto, 友彦 植松, Tomohiko Uyematsu

Published Sep 1, 2012• 0 citations
OpenAlex

Related papers

Secure Key Rate of the BB84 Protocol using Finite Sample Bits

洋介 佐野, Yousuke Sano, 隆太郎 松本 +3 more

•Jun 1, 2010•0 citations

Secure key rate of the BB84 protocol using finite sample bits

Yousuke Sano, Ryutaroh Matsumoto, Tomohiko Uyematsu

We improve the non-asymptotic key rate shown by Scarani and Renner by proposing several methods to construct tighter conservative confidence interval of the phase error rate than the one shown by them. In addition, we show that the accurate channel estimation method non-asymptotically increases the key rate over the amplitude damping channel as well as the asymptotic case in the BB84 protocol.

IEEE International Symposium on Information Theory (ISIT)•Jun 1, 2010•5 citations

Secure key rate of the BB84 protocol using finite sample bits

Yousuke Sano, Ryutaroh Matsumoto, Tomohiko Uyematsu

We improve the non-asymptotic key rate shown by Scarani and Renner by proposing several methods to construct tighter conservative confidence intervals of the phase error rate than one previously shown.In addition, we show that the accurate channel estimation method non-asymptotically increases the key rate over the amplitude damping channel as well as the asymptotic case in the BB84 protocol.

arXiv:1003.5766•Journal of Physics A Mathematical and Theoretical•Nov 15, 2010•19 citations

High Precision Algorithm for Phase Estimation

Alexander Steingaß

•Jan 1, 2001•0 citations

NOISE TOLERANCE OF THE BB84 PROTOCOL WITH RANDOM PRIVACY AMPLIFICATION

Shun Watanabe, Ryutaroh Matsumoto, Tomohiko Uyematsu

This paper shows that the random privacy amplification is secure with a higher key rate than Mayers' evaluation at the same error rate in the BB84 protocol with one-way or two-way classical communications. There exists only Mayers' evaluation on the secure key rate with random privacy amplification that is applicable to the BB84 protocol with two-way classical communications. Our result improves the secure key rate of the random privacy amplification in the BB84 protocol with two-way classical communications.

arXiv:quant-ph/0412070•International Journal of Quantum Information•Dec 1, 2006•19 citations

Robustness improvement in double random phase encoding using fingerprint keys

裕之 鈴木, Hiroyuki (Chiba Univ.) Suzuki, 健 伊藤 +7 more

•Nov 1, 2008•0 citations
This paper shows that the random privacy amplification is secure with a higher key rate than Mayers' evaluation at the same error rate in the BB84 protocol with one-way or two-way classical communications. There exists only Mayers' evaluation on the secure key rate with random privacy amplification that is applicable to the BB84 protocol with two-way classical communications. Our result improves the secure key rate of the random privacy amplification in the BB84 protocol with two-way classical communications.