Improving source-in-the-middle continuous-variable quantum key distribution using a heralded hybrid linear amplifier

被引:4
|
作者
Wu, Lei-Xin [1 ]
Feng, Yan-Yan [1 ]
Zhou, Jian [1 ]
机构
[1] Cent South Univ Forestry & Technol, Coll Comp & Informat Engn, Changsha 410004, Peoples R China
基金
中国国家自然科学基金;
关键词
hybrid linear amplifier; source-in-the-middle distribution; finite-size analysis; DISTANCE;
D O I
10.1088/1674-1056/ac9b39
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A hybrid linear amplifier is inserted at the output of the source-in-the-middle distribution protocol to overcome the shortcomings of the transmission distance. The modified protocol aims to maintain a high key rate for long-distance transmission under high noise. It has the potential to significantly broaden the application range of the continuous variable quantum key distribution protocol. The effects of amplifier parameters and noise on the modified protocol are analyzed in detail with regard to applying it to a practical system. To make the simulation more realistic, the effect of finite size on the new protocol is taken into account. It will serve as a guideline for the future use of hybrid linear amplifiers. Different parameters can be adjusted to achieve the best performance for key rates of different quantum channels.
引用
收藏
页数:6
相关论文
共 50 条
  • [1] Improving source-in-the-middle continuous-variable quantum key distribution using a heralded hybrid linear amplifier
    伍磊鑫
    冯艳艳
    周健
    Chinese Physics B, 2023, (07) : 338 - 343
  • [2] Improving Continuous-Variable Quantum Key Distribution Using the Heralded Noiseless Linear Amplifier with Source in the Middle
    Liang, Jianwu
    Zhou, Jian
    Shi, Jinjing
    He, Guangqiang
    Guo, Ying
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2016, 55 (02) : 1156 - 1166
  • [3] Improving Continuous-Variable Quantum Key Distribution Using the Heralded Noiseless Linear Amplifier with Source in the Middle
    Jianwu Liang
    Jian Zhou
    Jinjing Shi
    Guangqiang He
    Ying Guo
    International Journal of Theoretical Physics, 2016, 55 : 1156 - 1166
  • [4] Improving the discretely modulated underwater continuous-variable quantum key distribution with heralded hybrid linear amplifier
    Xiang, Yong
    Wang, Yijun
    Ruan, Xinchao
    Zuo, Zhiyue
    Guo, Ying
    PHYSICA SCRIPTA, 2021, 96 (06)
  • [5] Performance improvement of unidimensional continuous-variable quantum key distribution using heralded hybrid linear amplifier
    Zhou, Kunlin
    Chen, Zhiya
    Guo, Ying
    Liao, Qin
    PHYSICS LETTERS A, 2020, 384 (03)
  • [6] Continuous-Variable Quantum Key Distribution Based on Heralded Hybrid Linear Amplifier with a Local Local Oscillator
    Li, Yin
    Wang, Yijun
    Mao, Yun
    Peng, Weishao
    Jin, Di
    Guo, Ying
    ENTROPY, 2021, 23 (11)
  • [7] Performance Improvement of Discretely Modulated Continuous-Variable Quantum Key Distribution with Untrusted Source via Heralded Hybrid Linear Amplifier
    Zhou, Kunlin
    Wu, Xuelin
    Mao, Yun
    Chen, Zhiya
    Liao, Qin
    Guo, Ying
    ENTROPY, 2020, 22 (08)
  • [8] Enhancing continuous variable quantum key distribution with a heralded hybrid linear amplifier
    Zhou, Jian
    Shi, Ronghua
    Feng, Yanyan
    Shi, Jinjing
    Guo, Ying
    JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL, 2019, 52 (24)
  • [9] Security Analysis of Practical Continuous-Variable Quantum Key Distribution Using a Heralded Noiseless Amplifier
    Yuan Li
    Peng Huang
    Dengwen Li
    Yingming Zhou
    Tao Wang
    Guihua Zeng
    International Journal of Theoretical Physics, 2019, 58 : 2392 - 2406
  • [10] Security Analysis of Practical Continuous-Variable Quantum Key Distribution Using a Heralded Noiseless Amplifier
    Li, Yuan
    Huang, Peng
    Li, Dengwen
    Zhou, Yingming
    Wang, Tao
    Zeng, Guihua
    INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2019, 58 (07) : 2392 - 2406