Open AccessDetection and compensation of basis deviation in satellite-to-ground quantum communications
Author(s) -
Ming Zhang,
Liang Zhang,
Jincai Wu,
Shiji Yang,
Wei Xiong,
Zhiping He,
Jianjun Jia,
D. S. Citrin,
Yunlong Wang
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.009871
Subject(s) - standard deviation , computer science , compensation (psychology) , basis (linear algebra) , satellite , communications satellite , optics , electronic engineering , physics , mathematics , statistics , engineering , psychology , geometry , astronomy , psychoanalysis
Basis deviation is the reference-frame deviation between a sender and receiver caused by satellite motion in satellite-to-ground quantum communications. It increases the quantum-bit error ratio of the system and must be compensated for to guarantee reliable quantum communications. We present a new scheme for compensating for basis deviation that employs a BB84 decoding module to detect basis deviation and half-wave plate to provide compensation. Based on this detection scheme, we design a basis-deviation compensation approach and test its feasibility in a voyage experiment. Unlike other polarization-correction schemes, this compensation scheme is simple, convenient, and can be easily implemented in satellite-to-ground quantum communications without increased burden to the satellite.