Decoherence of high-dimensional orbital angular momentum entanglement in anisotropic turbulence  

作　　者：Xiang Yan Peng-Fei Zhang Cheng-Yu Fan Heng Zhao Jing-Hui Zhang Bo-Yun Wang Jun-Yan Wang 

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》2025年第4期39-44,共6页理论物理通讯(英文版)

基　　金：supported by the Project of the Hubei Provincial Department of Science and Technology(Grant Nos.2022CFB957,2022CFB475);the National Natural Science Foundation of China(Grant No.11847118)。

摘　　要：The decoherence of high-dimensional orbital angular momentum(OAM)entanglement in the weak scintillation regime has been investigated.In this study,we simulate atmospheric turbulence by utilizing a multiple-phase screen imprinted with anisotropic non-Kolmogorov turbulence.The entanglement negativity and fidelity are introduced to quantify the entanglement of a high-dimensional OAM state.The numerical evaluation results indicate that entanglement negativity and fidelity last longer for a high-dimensional OAM state when the azimuthal mode has a lower value.Additionally,the evolution of higher-dimensional OAM entanglement is significantly influenced by OAM beam parameters and turbulence parameters.Compared to isotropic atmospheric turbulence,anisotropic turbulence has a lesser influence on highdimensional OAM entanglement.

关 键 词：orbital angular momentum high-dimensional entangled state anisotropic turbulence 

分 类 号：O431[机械工程—光学工程]