Security Proof for Quantum Key Distribution Using Qudit Systems

Details Security Proof for Quantum Key Distribution Using Qudit Systems Security Proof for Quantum Key Distribution Using Qudit Systems

2010-03-29

arxiv.org/abs/1003.5464v3

Physical Review A, Vol.82, No.3, 030301(R) (2010)

Physics

Quantum Physics

5 pages, 1 figure, version 3 corrects equations (9) and (11), and slightly modifies the figure to reflect the change to equati

Scientific paper

10.1103/PhysRevA.82.030301

We provide security bounds against coherent attacks for two families of
quantum key distribution protocols that use $d$-dimensional quantum systems. In
the asymptotic regime, both the secret key rate for fixed noise and the
robustness to noise increase with $d$. The finite-key corrections are found to
be almost insensitive to $d\lesssim 20$.

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