Secure Quantum Telephones

Details Secure Quantum Telephones Secure Quantum Telephones

2007-02-09

arxiv.org/abs/quant-ph/0702084v2

Physics

Quantum Physics

Substantial changes made to ensure security of protocol

Scientific paper

We propose in this paper a novel deterministic protocol using particular maximally entangled states of polarized photons for a genuine bidirectional secure communication setup. We further propose a plausible experimental setup for such a protocol using currently available optical technology which liberates two communicating party from sharing identical apparatus. We note that security of the protocol is promised by the monogamous nature of maximally entangled states. We discuss the security of our protocol in the light of some simple eavesdropping scenarios.

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