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arXiv:1411.6430 · Quantum Information Processing

Efficient protocols for unidirectional and bidirectional controlled deterministic secure quantum communication: different alternative approaches

Anirban Pathak

Published Mar 4, 2015• 38 citations
arXivHTMLPDF
DOI
10.1007/s11128-015-0957-5

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In this paper, a novel controlled bidirectional quantum secure direct communication protocol (CBQSDC) is proposed. In this scheme, both users can transmit their secret messages directly and simultaneously under the permission of the controller. The proposed method use feature of entanglement swapping which is led to more efficiency (lowest number of quantum resources (EPR pairs)), security and the lowest number of security checking steps. Also, a generalization of the protocol is explained and a protocol of CBQSDC-based network is presented.