Secure deterministic communication without entanglement |
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Authors: | Lucamarini Marco Mancini Stefano |
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Institution: | Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy. |
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Abstract: | We propose a protocol for deterministic communication that does not make use of entanglement. It exploits nonorthogonal states in a two-way quantum channel to attain unconditional security and high efficiency of the transmission. We explicitly show the scheme is secure against a class of individual attacks regardless of the noise on the channel. Its experimental realization is feasible with current technology. |
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