Quantum key distribution without alternative measurements

被引：91
作者：
Cabello, A [1 ]
机构：
[1] Univ Seville, Dept Fis Aplicada, E-41012 Seville, Spain
来源：
PHYSICAL REVIEW A | 2000年 / 61卷 / 05期
关键词：
D O I：
10.1103/PhysRevA.61.052312
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Entanglement swapping between Einstein-Podolsky-Rosen (EPR) pairs can be used to generate the same sequence of random bits in two remote places. A quantum key distribution protocol based on this idea is described. The scheme exhibits the following features. (a) It does not require that Alice and Bob choose between alternative measurements, therefore improving the rate of generated bits by transmitted qubit. (b) It allows Alice and Bob to generate a key of arbitrary length using a single quantum system (three EPR pairs), instead of a long sequence of them. (c) Detecting Eve requires the comparison of fewer bits. (d) Entanglement is an essential ingredient. The scheme assumes reliable measurements of the Bell operator.
引用
收藏
页数：4
相关论文
共 31 条
  • [1] Simulations of many-body Fermi systems on a universal quantum computer
    Abrams, DS
    Lloyd, S
    [J]. PHYSICAL REVIEW LETTERS, 1997, 79 (13) : 2586 - 2589
  • [2] ARDEHALI M, QUANTPH9803007
  • [3] Bennett C. H., 1984, PROC IEEE INT C COMP, P175, DOI [DOI 10.1016/J.TCS.2014.05.025, 10.1016/j.tcs.2014.05.025]
  • [4] COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES
    BENNETT, CH
    WIESNER, SJ
    [J]. PHYSICAL REVIEW LETTERS, 1992, 69 (20) : 2881 - 2884
  • [5] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS
    BENNETT, CH
    BRASSARD, G
    CREPEAU, C
    JOZSA, R
    PERES, A
    WOOTTERS, WK
    [J]. PHYSICAL REVIEW LETTERS, 1993, 70 (13) : 1895 - 1899
  • [6] QUANTUM CRYPTOGRAPHY USING ANY 2 NONORTHOGONAL STATES
    BENNETT, CH
    [J]. PHYSICAL REVIEW LETTERS, 1992, 68 (21) : 3121 - 3124
  • [7] QUANTUM CRYPTOGRAPHY WITHOUT BELL THEOREM
    BENNETT, CH
    BRASSARD, G
    MERMIN, ND
    [J]. PHYSICAL REVIEW LETTERS, 1992, 68 (05) : 557 - 559
  • [8] Experimental realization of teleporting an unknown pure quantum state via dual classical and Einstein-Podolsky-Rosen channels
    Boschi, D
    Branca, S
    De Martini, F
    Hardy, L
    Popescu, S
    [J]. PHYSICAL REVIEW LETTERS, 1998, 80 (06) : 1121 - 1125
  • [9] Multiparticle generalization of entanglement swapping
    Bose, S
    Vedral, V
    Knight, PL
    [J]. PHYSICAL REVIEW A, 1998, 57 (02): : 822 - 829
  • [10] Experimental quantum teleportation
    Bouwmeester, D
    Pan, JW
    Mattle, K
    Eibl, M
    Weinfurter, H
    Zeilinger, A
    [J]. NATURE, 1997, 390 (6660) : 575 - 579
1234