Increasing the Efficiencies of Random-Choice-Based Quantum Communication Protocols with Delayed Measurement
DENG Fu-Guo1,2, LONG Gui-Lu1,2,3, WANG Yan4, XIAO Li1,2
1Centre for Quantum Information and Department of Physics, Tsinghua University, Beijing 100084
2Key Laboratory for Quantum Information and Measurements of MOE, Tsinghua University, Beijing 100084
3Centre for Atomic and Molecular NanoSciences, Tsinghua University, Beijing 100084
4Key Laboratory of Beam Technology and Materials Modification of MOE, and Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875
Increasing the Efficiencies of Random-Choice-Based Quantum Communication Protocols with Delayed Measurement
DENG Fu-Guo1,2;LONG Gui-Lu1,2,3; WANG Yan4;XIAO Li1,2
1Centre for Quantum Information and Department of Physics, Tsinghua University, Beijing 100084
2Key Laboratory for Quantum Information and Measurements of MOE, Tsinghua University, Beijing 100084
3Centre for Atomic and Molecular NanoSciences, Tsinghua University, Beijing 100084
4Key Laboratory of Beam Technology and Materials Modification of MOE, and Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875
Abstract： The security of quantum communications lies in the capability of the legitimate parties to detect eavesdropping. Here we propose to use delayed measurement to increase the efficiency of protocols of quantum key distribution and quantum secret sharing that uses a random choice of measuring-basis. In addition to a higher efficiency, these measures also bring the benefit of much reduced amount of classical communications.
DENG Fu-Guo;LONG Gui-Lu;; WANG Yan;XIAO Li;. Increasing the Efficiencies of Random-Choice-Based Quantum Communication Protocols with Delayed Measurement[J]. 中国物理快报, 2004, 21(11): 2097-2100.
DENG Fu-Guo, LONG Gui-Lu, , WANG Yan, XIAO Li,. Increasing the Efficiencies of Random-Choice-Based Quantum Communication Protocols with Delayed Measurement. Chin. Phys. Lett., 2004, 21(11): 2097-2100.
2004, Vol. 21 
