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pro vyhledávání: '"Kronberg, D."'
Quantum communication offers unique features that have no classical analog, in particular, it enables provably secure quantum key distribution (QKD). Despite the benefits of quantum communication are well understood within the scientific community, t
Externí odkaz:
http://arxiv.org/abs/2308.07082
Autor:
Kodukhov, A. D., Pastushenko, V. A., Kirsanov, N. S., Kronberg, D. A., Pflitsch, M., Vinokur, V. M.
Publikováno v:
Cryptography 7, 38 (2023)
With the rise of quantum technologies, data security increasingly relies on quantum cryptography and its most notable application, quantum key distribution (QKD). Yet, current technological limitations, in particular, the unavailability of quantum re
Externí odkaz:
http://arxiv.org/abs/2308.03733
Autor:
Kirsanov, N. S., Pastushenko, V. A., Kodukhov, A. D., Yarovikov, M. V., Sagingalieva, A. B., Kronberg, D. A., Pflitsch, M., Vinokur, V. M.
Publikováno v:
Sci Rep 13, 8756 (2023)
Quantum key distribution (QKD) is a revolutionary cryptography response to the rapidly growing cyberattacks threat posed by quantum computing. Yet, the roadblock limiting the vast expanse of secure quantum communication is the exponential decay of th
Externí odkaz:
http://arxiv.org/abs/2301.10610
Distinguishability of photons in non-operational degrees of freedom compromises unconditional security of quantum key distribution since an eavesdropper can improve attack strategies by exploiting this distinguishability. However, the optimal eavesdr
Externí odkaz:
http://arxiv.org/abs/2205.15964
Autor:
Kodukhov, A. D., Pastushenko, V. A., Kirsanov, N. S., Kronberg, D. A., Vinokur, V. M., Pflitsch, M., Lesovik, G. B.
Quantum key distribution (QKD) is a cornerstone of the secure quantum encryption. Building on the quantum irreversibility, we develop a technique reborning the existing QKDs into protocols that are unrestricted in distance and have unprecedented high
Externí odkaz:
http://arxiv.org/abs/2109.05575
Autor:
Kirsanov, N. S., Kenbaev, N. R., Sagingalieva, A. B., Kronberg, D. A., Vinokur, V. M., Lesovik, G. B.
Existing quantum cryptography is resistant against secrecy-breaking quantum computers but suffers fast decay of the signal at long distances. The various types of repeaters of propagating quantum states have been developed to meet the challenge, but
Externí odkaz:
http://arxiv.org/abs/2105.00035
Publikováno v:
Phys. Usp. 64, 88 (2021)
Quantum cryptography or, more precisely, quantum key distribution (QKD), is one of the advanced areas in the field of quantum technologies. The confidentiality of keys distributed with the use of QKD protocols is guaranteed by the fundamental laws of
Externí odkaz:
http://arxiv.org/abs/2101.10128
Publikováno v:
P-Adic Numbers, Ultrametric Analysis and Applications, 10:3, 222-232 (2018)
The differential phase shift quantum key distribution protocol is of high interest due to its relatively simple practical implementation. This protocol uses trains of coherent pulses and allows the legitimate users to resist individual attacks. In th
Externí odkaz:
http://arxiv.org/abs/1910.08339
Publikováno v:
Phys. Rev. A 101, 032334 (2020)
A precise security analysis of practical quantum key distribution (QKD) systems is an important step for improving their performance. Here we consider a class of quantum soft filtering operations, which generalizes the unambiguous state discriminatio
Externí odkaz:
http://arxiv.org/abs/1910.06167
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