Quantum Key Distribution Protocol Based on Odd Coherent Sources and Orbital Angular Momentum

Yefeng He; Dongqi Li; Chang Song; Jianguo Gao

doi:10.3788/CJL201845.0712001

Chinese Journal of Lasers, Volume. 45, Issue 7, 0712001(2018)

Quantum Key Distribution Protocol Based on Odd Coherent Sources and Orbital Angular Momentum

Yefeng He^1,2, Dongqi Li^{、* *}, Chang Song², and Jianguo Gao³

¹ National Engineering Laboratory of Wireless Network Security Technology, Xi'an University of Posts and Telecommunications, Xi'an, Shaanxi 710121, China

² School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, Shaanxi 710121, China

³ Shaanxi Ruixiang Petroleum Technology Service Co. Ltd., Xi'an, Shaanxi 710018, China

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Figures & Tables(5)

Fig. 1. OAM-MDI-QKD protocol with OCS[19]

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Fig. 2. Key generation rate versus secure transmission distance

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Fig. 3. Quality factor versus secure transmission distance

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Table 1. Photon pulse probability distributions of WCS and OCS[23]
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Table 1. Photon pulse probability distributions of WCS and OCS[23]
Pulse source Single photon number Multiphoton number
WCS 0.3293 0.1219
OCS 0.9424 0.0576

Table 2. Main simulation parameters
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Table 2. Main simulation parameters
Parameter Signal state Decoy state e₀ P_d f
Value 0.5 0.1 0.5 3×10^-6 1.16

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Yefeng He, Dongqi Li, Chang Song, Jianguo Gao. Quantum Key Distribution Protocol Based on Odd Coherent Sources and Orbital Angular Momentum[J]. Chinese Journal of Lasers, 2018, 45(7): 0712001

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