Quantum Key Distribution Based on Heralded Pair Coherent State and Orbital Angular Momentum

Yefeng He; Hongjuan Yang; Deng Wang; Dongqi Li; Chang Song

doi:10.3788/AOS201939.0427001

Journals >Acta Optica Sinica >Volume 39 >Issue 4 >Page 0427001 > Article

Acta Optica Sinica
Vol. 39, Issue 4, 0427001 (2019)

Quantum Key Distribution Based on Heralded Pair Coherent State and Orbital Angular Momentum

Yefeng He^1、2, Hongjuan Yang^2、*, Deng Wang^1、2, Dongqi Li², and Chang Song^1、2

Author Affiliations

¹ National Engineering Laboratory for Wireless Security, Xi'an University of Posts & Telecommunications, Xi'an, Shaanxi 710121, China;

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

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DOI: 10.3788/AOS201939.0427001 Cite this Article Set citation alerts

Yefeng He, Hongjuan Yang, Deng Wang, Dongqi Li, Chang Song. Quantum Key Distribution Based on Heralded Pair Coherent State and Orbital Angular Momentum[J]. Acta Optica Sinica, 2019, 39(4): 0427001 Copy Citation Text

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Fig. 1. MDI-QKD protocol based on HPCS and OAM

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Fig. 2. Relationship between channel transmission loss and mean photon number

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Fig. 3. Relationship between channel transmission loss and unilateral transmission efficiency

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Fig. 4. Relationship between channel transmission loss and key generation rate

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Source	Single photon	Multi-photon	Vacuum event
WCS	0.3033	0.0902	0.6065
HSPS	0.7274	0.2726	1.94×10^-6
HPCS	0.9255	0.0744	4.93×10^-6

Table 1. Photon distributions of WCS,HSPS and HPCS

Parameter	P_d	f	e₀	η_d
Value	3.6×10^-6	1.17	0.5	0.3

Table 2. Main simulation parameters

Yefeng He, Hongjuan Yang, Deng Wang, Dongqi Li, Chang Song. Quantum Key Distribution Based on Heralded Pair Coherent State and Orbital Angular Momentum[J]. Acta Optica Sinica, 2019, 39(4): 0427001

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