Relativistic quantum cryptography |
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| Authors: | S. N. Molotkov |
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| Affiliation: | 1.Institute of Solid State Physics,Russian Academy of Sciences,Chernogolovka, Moscow oblast,Russia;2.Academy of Cryptography of the Russian Federation,Moscow,Russia;3.Moscow State University,Moscow,Russia |
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| Abstract: | A new protocol of quantum key distribution is proposed to transmit keys through free space. Along with quantum-mechanical restrictions on the discernibility of nonorthogonal quantum states, the protocol uses additional restrictions imposed by special relativity theory. Unlike all existing quantum key distribution protocols, this protocol ensures key secrecy for a not strictly one-photon source of quantum states and an arbitrary length of a quantum communication channel. |
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