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Effect of electromagnetic disturbance on the practical qkd system in the smart grid

To improve the security of the smart grid, quantum key distribution (QKD) is an excellent choice. The rapid fluctuations on the power aerial optical cable and electromagnetic disturbance in substations are two main challenges for implementation of QKD. Due to insensitivity to birefringence of the ch... Full description

Journal Title: Chinese Physics B 2014, Vol.23(12), p.124201 (5pp)
Main Author: Li, Fang-Yi
Other Authors: Wang, Dong , Wang, Shuang , Li, Mo , Yin, Zhen-Qiang , Li, Hong-Wei , Chen, Wei , Han, Zheng-Fu
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1674-1056 ; E-ISSN: ; DOI: 10.1088/1674-1056/23/12/124201
Link: http://dx.doi.org/10.1088/1674-1056/23/12/124201
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recordid: iop10.1088/1674-1056/23/12/124201
title: Effect of electromagnetic disturbance on the practical qkd system in the smart grid
format: Article
creator:
  • Li, Fang-Yi
  • Wang, Dong
  • Wang, Shuang
  • Li, Mo
  • Yin, Zhen-Qiang
  • Li, Hong-Wei
  • Chen, Wei
  • Han, Zheng-Fu
subjects:
  • Unterstation
  • Smart Grid
  • Drehungswinkel
  • Lichtleiterkabel
  • Fehlerrate
  • Stabile Phase
  • Physics
ispartof: Chinese Physics B, 2014, Vol.23(12), p.124201 (5pp)
description: To improve the security of the smart grid, quantum key distribution (QKD) is an excellent choice. The rapid fluctuations on the power aerial optical cable and electromagnetic disturbance in substations are two main challenges for implementation of QKD. Due to insensitivity to birefringence of the channel, the stable phase-coding FaradayMichelson QKD system is very practical in the smart grid. However, the electromagnetic disturbance in substations on this practical QKD system should be considered. The disturbance might change the rotation angle of the Faraday mirror, and would introduce an additional quantum bit error rate (QBER). We derive the new fringe visibility of the system and the additional QBER from the electromagnetic disturbance. In the worst case, the average additional QBER only increases about 0.17% due to the disturbance, which is relatively small to normal QBER values. We also find the way to degrade the electromagnetic disturbance on the QKD system.
language: eng
source:
identifier: ISSN: 1674-1056 ; E-ISSN: ; DOI: 10.1088/1674-1056/23/12/124201
fulltext: no_fulltext
issn:
  • 1674-1056
  • 16741056
url: Link


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titleEffect of electromagnetic disturbance on the practical qkd system in the smart grid
creatorLi, Fang-Yi ; Wang, Dong ; Wang, Shuang ; Li, Mo ; Yin, Zhen-Qiang ; Li, Hong-Wei ; Chen, Wei ; Han, Zheng-Fu
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descriptionTo improve the security of the smart grid, quantum key distribution (QKD) is an excellent choice. The rapid fluctuations on the power aerial optical cable and electromagnetic disturbance in substations are two main challenges for implementation of QKD. Due to insensitivity to birefringence of the channel, the stable phase-coding FaradayMichelson QKD system is very practical in the smart grid. However, the electromagnetic disturbance in substations on this practical QKD system should be considered. The disturbance might change the rotation angle of the Faraday mirror, and would introduce an additional quantum bit error rate (QBER). We derive the new fringe visibility of the system and the additional QBER from the electromagnetic disturbance. In the worst case, the average additional QBER only increases about 0.17% due to the disturbance, which is relatively small to normal QBER values. We also find the way to degrade the electromagnetic disturbance on the QKD system.
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titleEffect of electromagnetic disturbance on the practical QKD system in the smart grid
descriptionTo improve the security of the smart grid, quantum key distribution (QKD) is an excellent choice. The rapid fluctuations on the power aerial optical cable and electromagnetic disturbance in substations are two main challenges for implementation of QKD. Due to insensitivity to birefringence of the channel, the stable phase-coding FaradayMichelson QKD system is very practical in the smart grid. However, the electromagnetic disturbance in substations on this practical QKD system should be considered. The disturbance might change the rotation angle of the Faraday mirror, and would introduce an additional quantum bit error rate (QBER). We derive the new fringe visibility of the system and the additional QBER from the electromagnetic disturbance. In the worst case, the average additional QBER only increases about 0.17% due to the disturbance, which is relatively small to normal QBER values. We also find the way to degrade the electromagnetic disturbance on the QKD system.
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abstractTo improve the security of the smart grid, quantum key distribution (QKD) is an excellent choice. The rapid fluctuations on the power aerial optical cable and electromagnetic disturbance in substations are two main challenges for implementation of QKD. Due to insensitivity to birefringence of the channel, the stable phase-coding FaradayMichelson QKD system is very practical in the smart grid. However, the electromagnetic disturbance in substations on this practical QKD system should be considered. The disturbance might change the rotation angle of the Faraday mirror, and would introduce an additional quantum bit error rate (QBER). We derive the new fringe visibility of the system and the additional QBER from the electromagnetic disturbance. In the worst case, the average additional QBER only increases about 0.17% due to the disturbance, which is relatively small to normal QBER values. We also find the way to degrade the electromagnetic disturbance on the QKD system.
doi10.1088/1674-1056/23/12/124201
eissn17414199
date2014-12-01