Influence of Geomagnetic Field in Satellite-ground Quantum Key Distribution
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Influence of Geomagnetic Field in Satellite-ground Quantum Key Distribution
Vol. 14, Issue 4, Pages: 76-78(2009)
作者机构:
哈尔滨理工大学应用科学学院
作者简介:
基金信息:
DOI:
CLC:TN918
Published:2009
稿件说明:
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ZHANG Guang-yu, ZHENG Kai, ZHOU Si-tian, et al. Influence of Geomagnetic Field in Satellite-ground Quantum Key Distribution[J]. 2009, 14(4): 76-78.
DOI:
ZHANG Guang-yu, ZHENG Kai, ZHOU Si-tian, et al. Influence of Geomagnetic Field in Satellite-ground Quantum Key Distribution[J]. 2009, 14(4): 76-78.DOI:
Influence of Geomagnetic Field in Satellite-ground Quantum Key Distribution
摘要
偏振跟踪技术是自由空间量子密钥分配中的关键技术之一.本文建立了星地量子密钥分配链路模型
研究了地磁场对光子偏振态大气传输的影响.理论分析和数值计算结果表明
光子在大气传输过程中
光振动平面会发生旋转
旋转角度的量级为10-3rad.
Abstract
Polarization tracking technique is one of key techniques in free-space quantum key distribution(QKD).In this paper
satellite-ground QKD link model is established and influence of geomagnetic field on transmission of photon polarization is analyzed.Theoretical analysis and numerical simulation show that optical vibration plane can rotate in the process of transmission of photon polarization and rotation angle is on the order of 10-3red.