Improving Key Rate of Optical Fiber Quantum Key Distribution System Based on Channel Tomography

被引：5
|
作者：
Zhu, Chang-Hua [1 ]
Quan, Dong-Xiao [1 ]
Zhang, Fang [1 ]
Pei, Chang-Xing [1 ]
机构：
[1] Xidian Univ, State Key Lab Integrated Serv Networks, Xian 710071, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS | 2013年 / 52卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Quantum key distribution; Tomography; Information reconciliation; Quantum bit error rate; Eavesdropping;
D O I：
10.1007/s10773-012-1365-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We investigate the key rate of polarization-coded optical fiber-based quantum key distribution system (QKD) with BB84 protocol by channel tomography. The quantum bit error rate (QBER) of the QKD system under depolarizing channel is obtained by analyzing output density operators, transmission rate of channel, transmission rate of the receiver and dark count of single photon detector. According to the estimated QBER an LDPC chosen adaptively is applied to information reconciliation and the practical final key rate is discussed. Analysis results show that compared with cascade scheme and no channel knowledge the key rate can be improved by the proposed reconciliation scheme with channel tomography.
引用
收藏
页码：596 / 603
页数：8
相关论文
共 50 条
  • [1] Improving Key Rate of Optical Fiber Quantum Key Distribution System Based on Channel Tomography
    Chang-Hua Zhu
    Dong-Xiao Quan
    Fang Zhang
    Chang-Xing Pei
    International Journal of Theoretical Physics, 2013, 52 : 596 - 603
  • [2] A QUANTUM KEY DISTRIBUTION CHANNEL BASED ON OPTICAL-FIBER
    TOWNSEND, PD
    THOMPSON, I
    JOURNAL OF MODERN OPTICS, 1994, 41 (12) : 2425 - 2433
  • [3] Optical system for quantum key distribution over an atmospheric communication channel
    Shiryaev, Daniil s.
    Razzhivina, Karina r.
    Kundius, Andrei a.
    Belyakov, Nikita a.
    Polukhin, Ivan s.
    Kolodeznyi, Evgenii s.
    JOURNAL OF OPTICAL TECHNOLOGY, 2024, 91 (08) : 542 - 546
  • [4] Improving the Secret Key Rate of Coherent Quantum Key Distribution With Bayesian Inference
    Kleis, Sebastian
    Schaeffer, Christian G.
    JOURNAL OF LIGHTWAVE TECHNOLOGY, 2019, 37 (03) : 722 - 728
  • [5] Long distance quantum key distribution in optical fiber
    Rosenberg, D.
    Peterson, C. G.
    Harrington, J.
    Rice, P.
    Dallmann, N.
    Tyagi, K. T.
    McCabe, K. P.
    Hughes, R. J.
    Nordholt, J. E.
    Hadfield, R. H.
    Baek, B.
    Nam, S.
    2008 CONFERENCE ON OPTICAL FIBER COMMUNICATION/NATIONAL FIBER OPTIC ENGINEERS CONFERENCE, VOLS 1-8, 2008, : 2756 - +
  • [6] High Speed Quantum Key Distribution Over Optical Fiber Network System
    Ma, Lijun
    Mink, Alan
    Tang, Xiao
    JOURNAL OF RESEARCH OF THE NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, 2009, 114 (03) : 149 - 177
  • [7] Coexistence of High-Bit-Rate Quantum Key Distribution and Data on Optical Fiber
    Patel, K. A.
    Dynes, J. F.
    Choi, I.
    Sharpe, A. W.
    Dixon, A. R.
    Yuan, Z. L.
    Penty, R. V.
    Shields, A. J.
    PHYSICAL REVIEW X, 2012, 2 (04):
  • [8] Key Distribution Scheme for Optical Fiber Channel Based on SNR Feature Measurement
    Wang, Xiangqing
    Zhang, Jie
    Wang, Bo
    Zhu, Kongni
    Song, Haokun
    Li, Ruixia
    Zhang, Fenghui
    PHOTONICS, 2021, 8 (06)
  • [9] Channel Estimation and Secret Key Rate Analysis of MIMO Terahertz Quantum Key Distribution
    Kundu, Neel Kanth
    Dash, Soumya P.
    Mckay, Matthew R.
    Mallik, Ranjan K.
    IEEE TRANSACTIONS ON COMMUNICATIONS, 2022, 70 (05) : 3350 - 3363
  • [10] Secure Key Distribution System Based on Optical Channel Physical Features
    Wang, Xiangqing
    Zhang, Jie
    Li, Yajie
    Zhao, Yongli
    Yang, Xiaokun
    IEEE PHOTONICS JOURNAL, 2019, 11 (06):
12345