Comparison of Gaussian and vortex beams in free-space QKD with phase encoding in turbulent atmosphere

被引：3
作者：
Adam, Iurii A. [1 ]
Yashin, Daniil A. [1 ]
Kargina, Daria A. [1 ]
Nasedkin, Boris A. [1 ]
机构：
[1] ITMO Univ, Kronverkskiy 49, St Petersburg 197101, Russia
来源：
NANOSYSTEMS-PHYSICS CHEMISTRY MATHEMATICS | 2022年 / 13卷 / 04期
关键词：
spectral gap; quantum graph; Schrodinger operator; discrete spectrum; QUANTUM KEY DISTRIBUTION; LASER-BEAM; PROPAGATION;
D O I：
10.17586/2220-8054-2022-13-4-392-403
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
At present, free-space QKD systems are being actively researched and developed. The main limitation of these systems remains the strong influence of atmospheric turbulence and weather conditions on the propagating Gaussian beam. In turn, a number of works have shown that vortex beams are more stable in a turbulent atmosphere. Thus, in this work, the use of vortex beams in the free-space QKD system with phase encoding under the condition of a turbulent atmosphere and their comparison with Gaussian beams are studied. The possibility of phase modulation preservation with additional modulation and demodulation of the vortex beam is also investigated.
引用
收藏
页码：392 / 403
页数：12
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