Low Timing Jitter Detector for Gigahertz Quantum Key Distribution
量子物理
2007-05-23 v1
摘要
A superconducting single-photon detector based on a niobium nitride nanowire is demonstrated in an optical-fibre-based quantum key distribution test bed operating at a clock rate of 3.3 GHz and a transmission wavelength of 850 nm. The low jitter of the detector leads to significant reduction in the estimated quantum bit error rate and a resultant improvement in the secrecy efficiency compared to previous estimates made by use of silicon single-photon avalanche detectors.
引用
@article{arxiv.quant-ph/0702216,
title = {Low Timing Jitter Detector for Gigahertz Quantum Key Distribution},
author = {R. J. Collins and R. H. Hadfield and V. Fernandez and S. W. Nam and G. S. Buller},
journal= {arXiv preprint arXiv:quant-ph/0702216},
year = {2007}
}
备注
11 pages, including 2 figures