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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 3. Отображено 3.
05-05-2023 дата публикации

Method and system for measurement device independent quantum key distribution network

Номер: CN116076035A
Принадлежит:

A quantum key distribution (QKD) network independent of a measurement device (MDI), a method of operating an MDI QKD network including a common server and a plurality of user systems, a user system for an MDI QKD network, and a method of operating a user system of an MDI QKD network. A method of operating an MDI QKD network including a common server and a plurality of user systems comprises the steps of: performing optical pulse generation and distribution at the common server using a laser source; receiving, at the user system, the light pulses from the public server; modulating the light pulse at the user system for quantum communication; retransmitting the modulated light pulses from the user system to the public server; an energy constraint component is used on each user system to limit Trojan horse attack (THA).

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04-04-2023 дата публикации

Method and apparatus for optical power limiter

Номер: CN115917409A
Принадлежит:

The invention discloses an optical power limiter, a method for manufacturing the optical power limiter, a method for limiting optical power, a method for leaking upper bound information in quantum cryptography and a quantum cryptography system. The optical power limiter includes: an optical input port; an optical output port; an active medium disposed between the input port and the output port; and a diaphragm disposed between the effective medium and the output port; wherein the effective medium has a thermo-optical coefficient such that a light beam entering the effective medium from the direction of the input port undergoes a refractive index gradient in a direction perpendicular to a propagation direction in the effective medium due to absorption; and wherein the diaphragm is disposed in a path of the light beam for limiting an amount of the light beam reaching the output port.

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02-05-2023 дата публикации

Method and system for quantum emitter

Номер: CN116057862A
Принадлежит:

A method of encoding quantum information of one or more degrees of freedom of a photonic coherence state of a baseband input optical signal, a quantum emitter and a computer readable medium. The quantum emitter includes a modulator configured to encode quantum information for one or more coherent state degrees of freedom of photons of a baseband input optical signal using sideband modulation of the baseband input optical signal.

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