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- W2776356329 abstract "The primary role played by communication in our society gives importance to the problem of securely transmitting sensitive information.Quantum physics can be exploited to solve this problem in a more secure way than it is possible by using classical protocols.The application of quantum physics to communication tasks is the basis of the new quantum communication field, of which quantum cryptography represents the most successful achievement.Quantum communication, however, suffers the presence of losses much more than classical communication.The high level of losses in fiber-based systems, limiting the maximum transmission distance to a few hundred kilometers, makes it necessary to find new ways to go further.A promising solution for extending it to a worldwide scale seems to be the use of satellites.This thesis studies some aspects of quantum communication from an experimental point of view.It presents both the study in the laboratory of quantum communication protocols and the experimental characterization of the satellite-ground channel by using a simulated space source exploiting corner-cube retro-reflectors on geodesic satellites.In addition to this, it also deals with some more technical issues of the problem, such as the construction of a high brilliance polarization-entangled photon source and the improvement of the receiving station for space quantum communication at the Matera Laser Ranging Observatory." @default.
- W2776356329 created "2018-01-05" @default.
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- W2776356329 date "2017-01-29" @default.
- W2776356329 modified "2023-09-24" @default.
- W2776356329 title "Space Quantum Communication" @default.
- W2776356329 hasPublicationYear "2017" @default.
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