Open AccessStudy on quantum key distribution between different media
Author(s) -
Fei Zhou,
Hai-Lin Yong,
Dongdong Li,
Juan Yin,
Ji-Gang Ren,
Cheng-Zhi Peng
Publication year - 2014
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.63.140303
Subject(s) - quantum key distribution , bb84 , computer science , photon , quantum , quantum information science , photon polarization , offset (computer science) , encoding (memory) , dc bias , quantum cryptography , transmission (telecommunications) , physics , electronic engineering , optics , telecommunications , quantum information , quantum mechanics , voltage , artificial intelligence , quantum entanglement , programming language , engineering
This paper mainly solves the photon polarization encoding problem of quantum key distribution (QKD) between different media. The influence of the transmission rate of different photon component on quantum bit error rate (QBER) has been quantitatively analyzed, with a practical analysis of QBER of QKD between air and water. Furthermore, we have put forward a single-photon compensation scheme for eliminating such non-ideal BB84 protocol, as well as a more robust and practical dual-photon encoding scheme to offset such interfacial non-unitary noise. This takes an important step towards the air-sea-ground wide area quantum communication in the future.