应用诱骗态的光子轨道角动量测量设备无关量子密钥分发协议的研究

发布时间：2018-06-21 18:32

本文选题：轨道角动量 + 测量设备无关量子密钥分发　；参考：《信号处理》2014年11期

【摘要】：轨道角动量作为量子信息的一种载体,可应用于测量设备无关量子密钥分发协议中,来消除发送端和接收端间的基校准。诱骗态技术可以消除量子密钥分发协议采用弱相干光源时易被分裂攻击的缺陷。本文将轨道角动量态、测量设备无关方案和诱骗态方案相结合,设计一种基于高效轨道角动量分离方法的诱骗态光子轨道角动量测量设备无关量子密钥分发协议方案,避免了极化方案中对极化基的依赖性缺陷,提高了密钥速率,本文给出了该方案密钥速率的理论推导,并分别对采用无限个诱骗态和两个诱骗态时该方案密钥速率进行了仿真。研究结果表明,在相同条件下,基于轨道角动量的MDI-QKD协议方案比极化方案密钥速率更高。
[Abstract]:As a carrier of quantum information, orbital angular momentum can be used to measure the device independent quantum key distribution protocol to eliminate the base calibration between the transmitter and the receiver. The decoy state technology can eliminate the defects that are easily split when the quantum key distribution protocol uses a weak coherent light source. Combining the scheme with the decoy state scheme, a decoy state photon track angular momentum measurement device independent quantum key distribution protocol is designed based on the high efficient orbital angular momentum separation method, which avoids the dependence on the polarization base in the polarization scheme and improves the key rate. This paper gives the theoretical deduction of the key rate of the scheme. The key rate of the scheme is simulated with the infinite decoy state and two decoy states respectively. The results show that under the same condition, the MDI-QKD protocol based on orbital angular momentum is higher than the polarization scheme.
【作者单位】：南京邮电大学信号处理与传输研究院;
【基金】：国家自然科学基金(61271238) 教育部高等学校博士学科点专项科研基金(20123223110003) 江苏省高校自然科学研究项目资助(11KJA510002) 江苏高校优势学科建设工程资助项目
【分类号】：TN918;O413

【共引文献】