Phys. Rev. Lett. 79, 2383–2386 (1997)Quantum Cryptography Based on Split Transmission of One-Bit Information in Two StepsReceived 5 March 1997; published in the issue dated 22 September 1997 We propose a simple quantum cryptographic scheme involving truly two orthogonal states. The security of the protocol is based on splitting the transfer of one-bit information into two steps, ensuring that only a fraction of the bit information is transmitted at a time. A particular implementation with an asymmetric interferometer is presented, which does not require the random timing of the packet sending as was used by Goldenberg and Vaidman [Phys. Rev. Lett. 75, 1239 (1995)]. © 1997 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.79.2383
DOI:
10.1103/PhysRevLett.79.2383
PACS:
89.70.+c, 03.65.-w
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