Acta Optica Sinica, Volume. 41, Issue 20, 2027001(2021)
Influence of Cirrus Clouds on Space-to-Earth Quantum Communication Channels in Free Space
Figures & Tables(7)
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
Fig. 2. Relationship among link attenuation, cirrus cloud ice water content, and transmission distance
Fig. 3. Relationship among channel capacity, cirrus cloud ice water content, and transmission distance
Fig. 4. Relationship among teleportation fidelity, parameters μ, and cirrus cloud noise probability
Fig. 5. Relationship among channel entanglement, cirrus cloud ice water content, and transmission distance
Table 1. Fitting coefficients of equivalent area sphere diameter
View tableTable 1. Fitting coefficients of equivalent area sphere diameter
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 2. Fitting coefficients of equivalent volume ball diameter
View tableTable 2. Fitting coefficients of equivalent volume ball 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
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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
Paper Information
Category: Quantum Optics
Received: Mar. 23, 2021
Accepted: Apr. 27, 2021
Published Online: Sep. 30, 2021
The Author Email: Xiuzai Zhang (zxzhering@163.com)
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