Security of quantum key distribution using d-level systems

Mohamed Bourennane; Anders Karlsson; Nicolas Gisin; Nicolas J. Cerf

Security of quantum key distribution using d-level systems

Mohamed Bourennane, Anders Karlsson, Nicolas Gisin, Nicolas J. Cerf

Research output: Contribution to journal › Article › peer-review

Abstract

Two quantum cryptosystems were investigated where the encoding was made into qudits with space of arbitrary dimension d. Standard quantum cryptography was extended to protocols where the key was carried by quantum states Hilbert space. A general model of quantum cloning was used to calculate the information accessible to an eavesdropper monitoring the qudits individually. Results showed that the two-bases protocol should be preferred to a (d+1)-bases.

Original language	English
Article number	127902
Pages (from-to)	1279021-1279024
Number of pages	4
Journal	Physical Review Letters
Volume	88
Issue number	12
State	Published - Mar 25 2002
Externally published	Yes

Cite this

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abstract = "Two quantum cryptosystems were investigated where the encoding was made into qudits with space of arbitrary dimension d. Standard quantum cryptography was extended to protocols where the key was carried by quantum states Hilbert space. A general model of quantum cloning was used to calculate the information accessible to an eavesdropper monitoring the qudits individually. Results showed that the two-bases protocol should be preferred to a (d+1)-bases.",

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AB - Two quantum cryptosystems were investigated where the encoding was made into qudits with space of arbitrary dimension d. Standard quantum cryptography was extended to protocols where the key was carried by quantum states Hilbert space. A general model of quantum cloning was used to calculate the information accessible to an eavesdropper monitoring the qudits individually. Results showed that the two-bases protocol should be preferred to a (d+1)-bases.

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Security of quantum key distribution using d-level systems

Abstract

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