Noise Tolerance of the BB84 Protocol with Random Privacy Amplification

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dc.creatorWatanabe, Shun
dc.creatorMatsumoto, Ryutaroh
dc.creatorUyematsu, Tomohiko
dc.date2004-12-09
dc.date2005-06-24
dc.date.accessioned2026-07-07T07:40:05Z
dc.date.available2026-07-07T07:40:05Z
dc.descriptionWe prove that BB84 protocol with random privacy amplification is secure with a higher key rate than Mayers' estimate with the same error rate. Consequently, the tolerable error rate of this protocol is increased from 7.5 % to 11 %. We also extend this method to the case of estimating error rates separately in each basis, which enables us to securely share a longer key.
dc.description26 pages, 1 figure, version 2 fills a logical gap in the proof. Version 3 includes an upper bound on the mutual information with finete code length by using the decoding error probability of the code. Version 4 adds a paragraph clarifying that no previous paper has proved that the BB84 with random privacy amplification can tolerate the 11% error rate
dc.identifierhttps://arxiv.org/abs/quant-ph/0412070
dc.identifierhttp://arxiv.org/abs/quant-ph/0412070
dc.identifierInternational Journal of Quantum Information, vol. 4, no. 6, pp. 935-946, Dec. 2006
dc.identifierdoi:10.1142/S0219749906002316
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/121679
dc.subjectQuantum Physics
dc.titleNoise Tolerance of the BB84 Protocol with Random Privacy Amplification
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