Abstract
We propose two deterministic secure quantum communication protocols employing three-qubit GHZ-like states and five-qubit Brown states as quantum channels for secure transmission of information in units of two bits and three bits using multipartite teleportation schemes developed here. In these schemes, the sender’s capability in selecting quantum channels and the measuring bases leads to improved qubit efficiency of the protocols.
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Acknowledgements
We thank Kerala State Council for Science, Technology and Environment for providing the financial support for this work. The authors also thank Kishore Thapliyal and Rishi Dutt Sharma for their suggestions regarding efficiency analysis.
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Joy, D., Surendran, S.P. & Sabir, M. Efficient deterministic secure quantum communication protocols using multipartite entangled states. Quantum Inf Process 16, 157 (2017). https://doi.org/10.1007/s11128-017-1613-z
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DOI: https://doi.org/10.1007/s11128-017-1613-z