Quantum cryptography with entangled photons

被引:769
|
作者
Jennewein, T
Simon, C
Weihs, G
Weinfurter, H
Zeilinger, A
机构
[1] Univ Vienna, Inst Expt Phys, A-1090 Vienna, Austria
[2] Univ Munich, Sekt Phys, D-80799 Munich, Germany
关键词
D O I
10.1103/PhysRevLett.84.4729
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
By realizing a quantum cryptography system based on polarization entangled photon pairs we establish highly secure keys, because a single photon source is approximated and the inherent randomness of quantum measurements is exploited. We implement a novel key distribution scheme using Wigner's inequality to test the security of the quantum channel, and, alternatively, realize a variant of the BB84 protocol. Our system has two completely independent users separated by 360 m, and generates raw keys at rates of 400-800 bits/s with bit error rates around 3%.
引用
收藏
页码:4729 / 4732
页数:4
相关论文
共 50 条
  • [1] The deployment of entangled photons for quantum cryptography.
    Poppe, A.
    Huebel, H.
    Schrenk, B.
    Blauensteiner, B.
    Hentschel, M.
    Ramelow, S.
    Kelling, T.
    Zeilinger, A.
    ELEKTROTECHNIK UND INFORMATIONSTECHNIK, 2007, 124 (05): : 142 - 148
  • [2] Entangled photons could advance quantum cryptography
    不详
    PHOTONICS SPECTRA, 2016, 50 (05) : 30 - 31
  • [3] Quantum cryptography with highly entangled photons from semiconductor quantum dots
    Schimpf, Christian
    Reindl, Marcus
    Huber, Daniel
    Lehner, Barbara
    Da Silva, Saimon F. Covre
    Manna, Santanu
    Vyvlecka, Michal
    Walther, Philip
    Rastelli, Armando
    SCIENCE ADVANCES, 2021, 7 (16):
  • [4] Co-operative Generation of Entangled Photons and Its Application in Quantum Cryptography Co-operative Generation of Entangled Photons
    Enaki, Nicolae A.
    Turcan, M.
    Vaseashta, Ashok
    TECHNOLOGICAL INNOVATIONS IN SENSING AND DETECTION OF CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR THREATS AND ECOLOGICAL TERRORISM, 2012, : 303 - 314
  • [5] Femtosecond laser-pumped source of entangled photons for quantum cryptography applications
    Pan, Dong
    Donaldson, William
    Sobolewski, Roman
    PHOTON COUNTING APPLICATIONS, QUANTUM OPTICS, AND QUANTUM CRYPTOGRAPHY, 2007, 6583
  • [6] The effect of multi-pair signal states in quantum cryptography with entangled photons
    Dusek, M
    Brádler, K
    JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS, 2002, 4 (02) : 109 - 113
  • [7] Quantum cryptography using entangled photons in energy-time Bell states
    Tittel, W
    Brendel, J
    Zbinden, H
    Gisin, N
    PHYSICAL REVIEW LETTERS, 2000, 84 (20) : 4737 - 4740
  • [8] Quantum and classical noise in practical quantum-cryptography systems based on polarization-entangled photons
    Castelletto, S
    Degiovanni, IP
    Rastello, ML
    PHYSICAL REVIEW A, 2003, 67 (02):
  • [9] Quantum cryptography with entangled QuNits
    Deng, HL
    Fang, XM
    CHINESE PHYSICS LETTERS, 2005, 22 (02) : 275 - 278
  • [10] Quantum cryptography with structured photons
    Forbes, Andrew
    Youssef, Mostafa
    Singh, Sachleen
    Nape, Isaac
    Ung, Bora
    APPLIED PHYSICS LETTERS, 2024, 124 (11)