Optimal dimensionality for quantum cryptography

D. B. Horoshko; S. Ya. Kilin

doi:10.1134/1.1576836

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Optimal dimensionality for quantum cryptography

D. B. Horoshko·S. Ya. Kilin

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Abstract

We perform a comparison of two protocols for generating a cryptographic key composed from d-valued symbols: one exploiting a string of independent qubits and another one utilizing d-level systems prepared in states belonging to d+1 mutually unbiased bases. We show that the protocol based on qubits is optimal for quantum cryptography, since it provides higher security and higher key generation rate.

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D. B. Horoshko, S. Ya. Kilin. 2002-03-19. Optimal dimensionality for quantum cryptography. https://doi.org/10.1134/1.1576836

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