J4 ›› 2015, Vol. 32 ›› Issue (6): 678-685.

• Quantum Optics • Previous Articles     Next Articles

Polarization Error and Compensation in Quantum Communication using Satellites

LI Tie-fei, LI Wei, YANG Feng, CUI shu-min   

  1. Information and Navigation College, Air force Engineering University, Xi’an 710077, China
  • Received:2014-12-19 Revised:2015-01-23 Published:2015-11-28 Online:2015-11-05

Abstract:

In view of the polarization maintaining problem in quantum communication using satellites, the atmospheric scattering and the relative motion between satellite and ground station which have impact on the photon polarization states in satellite quantum communication are researched. The influence on quantum bit error rate of the system caused by alignment error and phase delay are simulated and analyzed. The existing polarization compensation scheme that combines the BB84 protocol and half wave rotating has a defect that cannot communication in the process of compensation. A new scheme is proposed to overcome the defect. The result is that the polarization error can be compensated to zero on the basis of the improved scheme and realize the safe and reliable quantum communication using satellites.

Key words: quantum optics, polarization compensation, BB84 protocol, polarization error, phase delay, quantum bit error rate

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