Quantum key distribution system based on combined modulation | Zendy

Banghong Guo | Zendy; Yang Li | Zendy; Chong Xiang | Zendy; Chong Guan | Zendy; Ling-An Wu | Zendy; Songhao Liu | Zendy

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Quantum key distribution system based on combined modulation

Author(s) -

Banghong Guo,

Yang Li,

Chong Xiang,

Chong Guan,

Ling-An Wu,

Songhao Liu

Publication year - 2013

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.62.130303

Subject(s) - quantum key distribution , modulation (music) , computer science , phase modulation , key (lock) , continuous phase modulation , electronic engineering , physics , photon , optics , telecommunications , phase noise , engineering , computer security , acoustics

We suggest a combined modulation quantum key distribution (QKD) system which encodes each single-photon signal with both phase modulation and polarization modulation. With the aid of dual-velocity protocol of hybrid QKD system, we construct a scheme to realize this combined modulation QKD which generates two-bit key with one signal for increasing the efficiency of QKD. We also develop a combined modulation Michelson QKD system, then solve the stability problem of the combined modulation QKD system in principle.

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