Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Masaki Sohma"'
Autor:
Osamu Hirota, Masaki Sohma
Publikováno v:
Entropy, Vol 26, Iss 11, p 983 (2024)
This paper discusses the foundation of security theory for the Quantum stream cipher based on the Holevo–Yuen theory, which allows the use of “optical amplifiers”. This type of cipher is a technology that provides information-theoretic security
Externí odkaz:
https://doaj.org/article/5933dc5647644b02996c7e3504fb9501
Autor:
Masaki Sohma, Osamu Hirota
Publikováno v:
Entropy, Vol 24, Iss 5, p 667 (2022)
In this review paper, we first introduce the basic concept of quantum computer-resistant cryptography, which is the cornerstone of security technology for the network of a new era. Then, we will describe the positioning of mathematical cryptography a
Externí odkaz:
https://doaj.org/article/b4f11f6bd1f8418d9f67872f5bafd4bf
Autor:
Masaki Sohma, Osamu Hirota
Publikováno v:
Quantum Information Processing. 13:2221-2239
The security analysis of physical encryption protocol based on coherent pulse position modulation (CPPM) originated by Yuen is one of the most interesting topics in the study of cryptosystem with a security level beyond the Shannon limit. Although th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e5d655d98aee06c32421883bff15f84a
https://doi.org/10.1007/s11128-014-0748-4
https://doi.org/10.1007/s11128-014-0748-4
Publikováno v:
The Review of Laser Engineering. 36:428-432
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eaf1ac1c6ac8b49ea625e3703943acc8
https://doi.org/10.2184/lsj.36.428
https://doi.org/10.2184/lsj.36.428
Autor:
Masaki Sohma, Osamu Hirota
Publikováno v:
AIP Conference Proceedings.
On the basis of fundamental idea of Yuen, we present a new type of quantum random cipher, where pulse position modulated signals are encrypted in the picture of quantum Gaussian wave form. We discuss the security of our proposed system with a phase m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66ab7ef44232144427640ee3d63b54a3
https://doi.org/10.1063/1.4903113
https://doi.org/10.1063/1.4903113
Publikováno v:
Reports on Mathematical Physics. 46:343-358
The purpose of this work is the study of the error probability for quantum channels with infinite (continuous) alphabets and additive constraints onto the input signal. We derive the lower bounds for the reliability function of such channels in terms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::34c889b7953c682443c0902fba77007d
https://doi.org/10.1016/s0034-4877(00)90005-3
https://doi.org/10.1016/s0034-4877(00)90005-3
Publikováno v:
Physical Review A. 59:1820-1828
The aim of this paper is to give explicit calculation of the classical capacity of quantum Gaussian channels, in particular, involving squeezed states. The calculation is based on a general formula for the entropy of a quantum Gaussian state, which i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb6cdd27b6bfd95d6632524adadfa8a4
https://doi.org/10.1103/physreva.59.1820
https://doi.org/10.1103/physreva.59.1820
Publikováno v:
SPIE Proceedings.
The security in the next generation optical network which realizes "Cloud Computing System Service with data center" is one of the most important problems. In such a network, the encryption in physical layer which provide super security and small del
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d717c8d4afef1d0de369b56450db8f57
https://doi.org/10.1117/12.860117
https://doi.org/10.1117/12.860117
Publikováno v:
AIP Conference Proceedings.
We estimate effects of antisqueezing in the Y00 (or αη) cryptographic system with ASK signal states. In addition we consider attenuation channel with phase sensitive amplifiers and evaluate the maximum optical fiber length for the system.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9994966b54a36dd02fe332688739bbc8
https://doi.org/10.1063/1.3131342
https://doi.org/10.1063/1.3131342
Publikováno v:
Quantum Communication, Computing, and Measurement 2 ISBN: 0306463075
This paper presents the classical capacities of quantum Gaussian channels using squeezed states. The calculation is based on a general formula for the entropy of quantum Gaussian state.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b3595fd989e3bcfdcba7e80bc124b90
https://doi.org/10.1007/0-306-47097-7_12
https://doi.org/10.1007/0-306-47097-7_12
