Theoretically efficient high-capacity quantum-key-distribution scheme

G. L. Long and X. S. Liu
Phys. Rev. A 65, 032302 – Published 1 February 2002
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Abstract

A theoretical quantum key distribution scheme using Einstein-Podolsky-Rosen (EPR) pairs is presented. This scheme is efficient in that it uses all EPR pairs in distributing the key except those chosen for checking eavesdroppers. The high capacity is achieved because each EPR pair carries 2 bits of key code.

  • Received 6 July 2001

DOI:https://doi.org/10.1103/PhysRevA.65.032302

©2002 American Physical Society

Authors & Affiliations

G. L. Long1,2,3,4 and X. S. Liu1,5

  • 1Department of Physics, Tsinghua University, Beijing 100084, People’s Republic of China
  • 2Key Laboratory for Quantum Information and Measurements, Ministry of Education, Beijing 100084, People’s Republic of China
  • 3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080, People’s Republic of China
  • 4Center for Atomic, Molecular and NanoSciences, Tsinghua University, Beijing 100084, People’s Republic of China
  • 5Department of Physics, Shandong Normal University, Jinan 250015, People’s Republic of China

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Vol. 65, Iss. 3 — March 2002

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