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Письма в Журнал экспериментальной и теоретической физики, 2005, том 81, выпуск 7, страницы 437–441
(Mi jetpl1718)
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Эта публикация цитируется в 1 научной статье (всего в 1 статье)
КВАНТОВАЯ ИНФОРМАТИКА
Using of small-scale quantum computers in cryptography with many-qubit entangled states
K. V. Bayandin, G. B. Lesovik L. D. Landau Institute for Theoretical Physics RAS,
117940, Moscow, Russia
Аннотация:
We propose a new cryptographic protocol. It is suggested to encode information in ordinary binary form into many-qubit entangled states with the help of a quantum computer. A state of qubits (realized, e.g., with photons) is transmitted through a quantum channel to the addressee, who applies a quantum computer tuned to realize the inverse unitary transformation decoding the message. Different ways of eavesdropping are considered and the estimation of the time, needed for determining the secret unitary transformation, is given. It is shown, that using even small quantum computers can serve as a basis for very efficient cryptographic protocols. For a suggested cryptographic protocol the time scale on which communication can be considered secure is exponential in the number of qubits in the entangled states and in the number of gates used to construct the quantum network.
Поступила в редакцию: 13.12.2004 Исправленный вариант: 09.03.2005
Образец цитирования:
K. V. Bayandin, G. B. Lesovik, “Using of small-scale quantum computers in cryptography with many-qubit entangled states”, Письма в ЖЭТФ, 81:7 (2005), 437–441; JETP Letters, 81:7 (2005), 351–355
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl1718 https://www.mathnet.ru/rus/jetpl/v81/i7/p437
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