Effect of atmospheric turbulence on orbital angular momentum entangled state  

作　　者：Xiang Yan Peng-Fei Zhang Cheng-Yu Fan Jing-Hui Zhang 

机构地区：[1]School of Physics and Electronic Information Engineering,Hubei Engineering University,Xiaogan,432000,China [2]Key Laboratory of Atmospheric Composition and Optical Radiation,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei 230031,China

出　　处：《Communications in Theoretical Physics》2022年第2期36-43,共8页理论物理通讯（英文版）

基　　金：Project supported by the Major Research Plan of the National Natural Science Foundation of China(Grant No.11847118)。

摘　　要：The entangled orbital angular momentum(OAM)photons propagating across a weakly turbulent atmosphere are investigated.Here,the paper uses the single-phase screen model based on the Kolmogorov theory of turbulence,and focuses on the influence of the backward scattering on OAM evolution.The results indicate that backward scattering plays an important role in the analysis of OAM entanglement evolution in the turbulent atmosphere.It cannot be negligible especially for higher-order OAM mode.Moreover,when OAM mode is greater than 4,entangled photon pairs composed of higher OAM modes are not more robust in turbulence within the weak scintillation regime.These results will be useful in future investigations of OAM-based optical wave propagation through turbulent atmosphere.

关 键 词：turbulent atmosphere backward scattering orbital angular momentum 

分 类 号：O43[机械工程—光学工程]