Non-Kolmogorov湍流对轨道角动量纠缠W态的影响  

Effect of Non-Kolmogorov Turbulence on Entangled Orbital Angular Momentum Three-Qubit W State

作　　者：闫香 刘会 赵恒 YAN Xiang;LIU Hui;ZHAO Heng(School of Physics and Electronic Information Engineering,Hubei Engineering University,Xiaogan 432000,China)

机构地区：[1]湖北工程学院物理与电子信息工程学院,湖北孝感432000

出　　处：《光学与光电技术》2020年第5期40-44,共5页Optics & Optoelectronic Technology

基　　金：国家自然科学基金(11847118)资助项目。

摘　　要：运用单相位屏近似法研究了轨道角动量纠缠W态传输通过non-Kolmogorov湍流的纠缠退相干。数值分析了湍流参数和光束参数对轨道角动量纠缠W态演化的影响。研究结果表明大气湍流的谱指数和内尺度越大,湍流的折射率结构常数和湍流的外尺度越小,轨道角动量纠缠受non-Kolmogorov湍流的影响越小。此外,光子轨道角动量量子数越大且拉盖尔高斯光束的束腰宽度越小,轨道角动量纠缠受non-Kolmogorov湍流的影响越小。The entangled orbital angular momentum(OAM)three photons propagating in non-Kolmogorov turbulence atmosphere are investigated. This paper focus on the influences of the beam parameters and the turbulence parameters on the entanglement evolution of OAM photons. The results indicate that the OAM entanglement is less affected by turbulence with a higher generalized exponent,larger turbulence inner scale or a smaller turbulence outer scale and larger structure constant.These results will be useful in future investigations of optical wave propagation through atmospheric turbulence.

关 键 词：涡旋光束 Non-Kolmogorov湍流 W态 纠缠退相干 

分 类 号：O431.2[机械工程—光学工程]