Secure deterministic communication without entanglement

被引:364
作者
Lucamarini, M [1 ]
Mancini, S
机构
[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[2] Univ Camerino, Dipartimento Fis, I-62032 Camerino, Italy
关键词
D O I
10.1103/PhysRevLett.94.140501
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
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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页数:4
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