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arXiv · 1901.08717

Enhanced Bell state measurement for efficient measurement-device-independent quantum key distribution using 3-dimensional quantum states

Yonggi Jo·Kwangil Bae·Wonmin Son
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Abstract

We propose an enhanced discrimination measurement for tripartite 3-dimensional entangled states in order to improve the discernible number of orthogonal entangled states. The scheme suggests 3-dimensional Bell state measurement by exploiting composite two 3-dimensional state measurement setups. The setup relies on state-of-the-art techniques, a multi-port interferometer and nondestructive photon number measurements that are used for the post-selection of suitable ensembles. With this scheme, the sifted signal rate of measurement-device-independent quantum key distribution using 3-dimensional quantum states is improved by up to a factor of three compared with that of the best existing setup.

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Yonggi Jo, Kwangil Bae, Wonmin Son. 2019-01-25. Enhanced Bell state measurement for efficient measurement-device-independent quantum key distribution using 3-dimensional quantum states. https://doi.org/10.1038/s41598-018-36513-x

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