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Quantum Physics

arXiv:1103.0471 (quant-ph)
[Submitted on 2 Mar 2011 (v1), last revised 10 Mar 2011 (this version, v2)]

Title:High-capacity quantum secure direct communication based on quantum hyperdense coding with hyperentanglement

Authors:Tie-Jun Wang, Tao Li, Fang-Fang Du, Fu-Guo Deng
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Abstract:We present a quantum hyperdense coding protocol with hyperentanglement in polarization and spatial-mode degrees of freedom of photons first and then give the details for a quantum secure direct communication (QSDC) protocol based on this quantum hyperdense coding protocol. This QSDC protocol has the advantage of having a higher capacity than the quantum communication protocols with a qubit system. Compared with the QSDC protocol based on superdense coding with $d$-dimensional systems, this QSDC protocol is more feasible as the preparation of a high-dimension quantum system is more difficult than that of a two-level quantum system at present.
Comments: 5 pages, 2 figure
Subjects: Quantum Physics (quant-ph)
Cite as: arXiv:1103.0471 [quant-ph]
  (or arXiv:1103.0471v2 [quant-ph] for this version)
  https://doi.org/10.48550/arXiv.1103.0471
Journal reference: Chinese Physics Letters 28, 040305 (2011)
Related DOI: https://doi.org/10.1088/0256-307X/28/4/040305

Submission history

From: Fu-Guo Deng [view email]
[v1] Wed, 2 Mar 2011 16:17:08 UTC (310 KB)
[v2] Thu, 10 Mar 2011 18:03:30 UTC (310 KB)
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