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Trapped Ion Quantum Computing

High error-rate quantum key distribution for long-distance communication

arXiv
Authors: Muhammad Mubashir Khan, Michael Murphy, Almut Beige

Year

2009

Paper ID

9161

Status

Preprint

Abstract Read

~2 min

Abstract Words

110

Citations

N/A

Abstract

In the original BB84 protocol by Bennett and Brassard, an eavesdropper is detected because his attempts to intercept information result in a quantum bit error rate (QBER) of at least 25%. Here we design an alternative quantum key distribution protocol, where Alice and Bob use two mutually unbiased bases with one of them encoding a "0" and the other one encoding a "1." The security of the scheme is due to a minimum index transmission error rate (ITER) introduced by an eavesdropper which increases significantly for higher-dimensional photon states. This allows for more noise in the transmission line, thereby increasing the possible distance between Alice and Bob without the need for intermediate nodes.

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  • This paper contributes to the Trapped-Ion Quantum Computing research area in the Quantum Articles archive.
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  • In the original BB84 protocol by Bennett and Brassard, an eavesdropper is detected because his attempts to intercept information result in a quantum bit error rate (QBER) of at...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:0901.3909 [2] arXiv https://arxiv.org/abs/0901.3909 [3] Publisher https://arxiv.org/abs/0901.3909

Local Citation Graph (Related-Paper Links)

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