A Theoretical Scheme for Multi-user Quantum Key Distribution with N Einstein-Podolsky-Rosen Pairs on a Passive Optical Network
DENG Fu-Guo1,2, LIU Xiao-Shu1,5, MA Ying-Jun1,2, Xiao Li1,2, LONG Gui-Lu1,2,3,4
1Department of Physics, Tsinghua University, Beijing 100084
2Key Laboratory for Quantum Information and Measurements, Beijing 100084
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
4Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084
5Department of Physics, Shandong Normal University, Ji’nan 250015
A Theoretical Scheme for Multi-user Quantum Key Distribution with N Einstein-Podolsky-Rosen Pairs on a Passive Optical Network
DENG Fu-Guo1,2;LIU Xiao-Shu1,5;MA Ying-Jun1,2;Xiao Li1,2;LONG Gui-Lu1,2,3,4
1Department of Physics, Tsinghua University, Beijing 100084
2Key Laboratory for Quantum Information and Measurements, Beijing 100084
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
4Center for Atomic and Molecular Nanosciences, Tsinghua University, Beijing 100084
5Department of Physics, Shandong Normal University, Ji’nan 250015
Abstract： We propose a theoretical scheme for any-to-any multi-user quantum key distribution on a passive optical network with ordered N Einstein-Podolsky-Rosen pairs. This scheme is safe and more efficient than those with single photons. Its efficiency approaches 100% in the limit that the number of pairs used in eavesdropping check becomes negligible. It also has high capacity and is convenient for users.
DENG Fu-Guo;LIU Xiao-Shu;MA Ying-Jun;Xiao Li;LONG Gui-Lu;;. A Theoretical Scheme for Multi-user Quantum Key Distribution with N Einstein-Podolsky-Rosen Pairs on a Passive Optical Network[J]. 中国物理快报, 2002, 19(7): 893-896.
DENG Fu-Guo, LIU Xiao-Shu, MA Ying-Jun, Xiao Li, LONG Gui-Lu, ,. A Theoretical Scheme for Multi-user Quantum Key Distribution with N Einstein-Podolsky-Rosen Pairs on a Passive Optical Network. Chin. Phys. Lett., 2002, 19(7): 893-896.
2002, Vol. 19 
