Influence of Cirrus Clouds on Space-to-Earth Quantum Communication Channels in Free Space

Xiuzai Zhang; Xi Xu; Bangyu Liu

doi:10.3788/AOS202141.2027001

Journals >Acta Optica Sinica >Volume 41 >Issue 20 >Page 2027001 > Article

Acta Optica Sinica
Vol. 41, Issue 20, 2027001 (2021)

Influence of Cirrus Clouds on Space-to-Earth Quantum Communication Channels in Free Space

Xiuzai Zhang^1、2、*, Xi Xu¹, and Bangyu Liu¹

Author Affiliations

¹School of Electronic and Information Engineering, Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China;

²Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Nanjing University of Information Science & Technology, Nanjing, Jiangsu 210044, China;

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DOI: 10.3788/AOS202141.2027001 Cite this Article Set citation alerts

Xiuzai Zhang, Xi Xu, Bangyu Liu. Influence of Cirrus Clouds on Space-to-Earth Quantum Communication Channels in Free Space[J]. Acta Optica Sinica, 2021, 41(20): 2027001 Copy Citation Text

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Relationships between extinction efficiency factor and maximum particle size for ice crystal particles with different shapes. (a) Hexagonal plate; (b) hexagonal prism; (c) hollow hexagonal prism; (d) four bullet roses; (e) space bullet roses; (f) polymer

Fig. 1. Relationships between extinction efficiency factor and maximum particle size for ice crystal particles with different shapes. (a) Hexagonal plate; (b) hexagonal prism; (c) hollow hexagonal prism; (d) four bullet roses; (e) space bullet roses; (f) polymer

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Fig. 2. Relationship among link attenuation, cirrus cloud ice water content, and transmission distance

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Fig. 3. Relationship among channel capacity, cirrus cloud ice water content, and transmission distance

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Fig. 4. Relationship among teleportation fidelity, parameters μ, and cirrus cloud noise probability

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Fig. 5. Relationship among channel entanglement, cirrus cloud ice water content, and transmission distance

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Ice crystal particle shape	a₀	a₁	a₂	a₃	a₄
Hexagonal plate	0.43773	0.75497	0.19033×10^-1	0.35191×10^-3	-0.70782×10^-4
Hexagonal prism	0.33401	0.36477	0.30855	-0.55631×10^-1	0.30162×10^-2
Hollow hexagonal prism	0.33401	0.36477	0.30855	-0.55631×10^-1	0.30162×10^-2
Four bullet roses	0.15909	0.84308	0.70161×10^-2	-0.11003×10^-2	0.45161×10^-4
Space bullet roses	0.14195	0.84394	0.72125×10^-2	-0.11219×10^-2	0.45819×10^-4
Polymer	-0.47737	1.00260	-0.10030×10^-2	0.15166×10^-3	-0.78433×10^-5

Table 1. Fitting coefficients of equivalent area sphere diameter

Ice crystal particle shape	a₀	a₁	a₂	a₃	a₄
Hexagonal plate	0.31229	0.80874	0.29287×10^-2	-0.44378×10^-3	-0.23109×10^-4
Hexagonal prism	0.30581	0.26252	0.35458	-0.63202×10^-1	0.33755×10^-2
Hollow hexagonal prism	0.24568	0.26202	0.35479	-0.63236×10^-1	0.33773×10^-2
Four bullet roses	-0.09794	0.85683	0.29483×10^-2	-0.14341×10^-2	0.74627×10^-4
Space bullet roses	-0.10318	0.86290	0.70665×10^-3	-0.11055×10^-2	0.57906×10^-4
Polymer	-0.70160	0.99215	-0.29322×10^-2	0.40492×10^-3	-0.18841×10^-4

Table 2. Fitting coefficients of equivalent volume ball diameter

Xiuzai Zhang, Xi Xu, Bangyu Liu. Influence of Cirrus Clouds on Space-to-Earth Quantum Communication Channels in Free Space[J]. Acta Optica Sinica, 2021, 41(20): 2027001

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