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arXiv · 1504.08046

Multiplexing scheme for simplified entanglement-based large-alphabet quantum key distribution

Adetunmise C. Dada
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Abstract

We propose a practical quantum cryptographic scheme which combines high information capacity, such as provided by high-dimensional quantum entanglement, with the simplicity of a two-dimensional Clauser-Horne-Shimony-Holt (CHSH) Bell test for security verification. By applying a state combining entanglement in a two-dimensional degree of freedom, such as photon polarization, with high-dimensional correlations in another degree of freedom, such as photon orbital angular momentum (OAM) or path, the scheme provides a considerably simplified route towards security verification in quantum key distribution (QKD) aimed at exploiting high-dimensional quantum systems for increased secure key rates. It also benefits from security against collective attacks and is feasible using currently available technologies.

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BibTeXRIS

Adetunmise C. Dada. 2015-04-29. Multiplexing scheme for simplified entanglement-based large-alphabet quantum key distribution. https://doi.org/10.1103/physreva.91.052313

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