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Eavesdropping of two-way coherent-state quantum cryptography via Gaussian quantum cloning machines
two-way coherent-state quantum cryptography Gaussian quantum cloning machines
2010/4/9
We consider one of the quantum key distribution protocols recently introduced in Ref. [Pirandola et al., Nature Physics 4, 726 (2008)]. This protocol consists in a two-way quantum communication betwee...