New encoding schemes for quantum authentication

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We study the potential of general quantum operations, Trace-Preserving Completely-Positive Maps (TPCPs), as encoding and decoding mechanisms in quantum authentication protocols. The study shows that these general operations do not offer significant advantage over unitary encodings. We also propose a practical authentication protocol based on the use of two successive unitary encodings.
LaTeX, 11 pages

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Quantum Physics

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http://salesiana.dossiersoluciones.com/handle/123456789/91167

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/quant-ph/0306068
 http://arxiv.org/abs/quant-ph/0306068

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arXiv