Confidential Continuous Variable Direct Communication Protocol by Using Fock-Coherent Entangled States

Confidential Continuous Variable Direct Communication Protocol by Using Fock-Coherent Entangled States

We propose a scheme for the secure direct communication based on the entangled phase-coherent states, which shows an elevated level of confidentiality. The protocol gives a simultaneous security control for every bit of transferred information. The security-check-per-bit is provided by sending an ad...

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Hauptverfasser: Jahanshahi, Soudeh, Alighanbari, Soroosh, Bahrampour, Alireza, Zandi, Mohammad Hossein
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creator Jahanshahi, Soudeh
Alighanbari, Soroosh
Bahrampour, Alireza
Zandi, Mohammad Hossein
description We propose a scheme for the secure direct communication based on the entangled phase-coherent states, which shows an elevated level of confidentiality. The protocol gives a simultaneous security control for every bit of transferred information. The security-check-per-bit is provided by sending an additional mode to prove the legitimate parties' authenticity. Other benefit include increased transfer rate, since a separate control sequences is unnecessary. We study the security of the scheme for both ideal and realistic quantum channel. The protocol shows a robust security and prepares 50% probability to detect the presence of the eavesdropper.
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title Confidential Continuous Variable Direct Communication Protocol by Using Fock-Coherent Entangled States
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