首页> 外文期刊>Optical and quantum electronics >CV MDI-QKD with noisy coherent states
【24h】

CV MDI-QKD with noisy coherent states

机译:具有嘈杂相干态的CV MDI-QKD

获取原文
获取原文并翻译 | 示例
           

摘要

Continuous variable measurement-device-independent quantum key distribution (CV MDI-QKD) where legitimate communication parties, Alice and Bob, do not connect to each other directly but to an untrusted relay where the detection is performed can defend attacks that aim at measurement devices. It was recently shown that the preparation noise, although being trusted, was breaking the security of CV QKD. Hence, we study the security of continuous variable measurement-device-independent quantum key distribution based on noisy modulation of coherent states and investigate how the preparation noise influences the maximum transmission distance of the system. We propose a scheme of using a variable attenuator to attenuate decoder's (Bob's) mode to purify the coherent states he sends out under two-mode coherent attack. The simulation results show that when taking preparation noise into consideration the maximum transmission distance decreases seriously and our scheme can effectively compensate the detrimental effect of the preparation noise and improve the maximum transmission distance.
机译:连续的不依赖于测量设备的量子密钥分发(CV MDI-QKD),在这种情况下,合法的通信方Alice和Bob不会直接相互连接,而是连接到进行检测的不受信任的中继,可以防御针对测量设备的攻击。最近显示,准备噪声虽然受到信任,但却破坏了CV QKD的安全性。因此,我们研究基于相干态的噪声调制的与连续可变的测量设备无关的量子密钥分配的安全性,并研究预备噪声如何影响系统的最大传输距离。我们提出了一种使用可变衰减器衰减解码器(Bob)模式以净化他在双模相干攻击下发出的相干状态的方案。仿真结果表明,在考虑预备噪声的情况下,最大传输距离严重减小,可以有效补偿预备噪声的不利影响,提高了最大传输距离。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号