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斜程湍流大气光通信信道的单光子轨道角动量
Orbital angular momentum of single photons for optical communication in a slant path atmospheric turbulence
【摘要】 研究了基于单光子轨道角动量技术的量子光通信系统的大气湍流效应,动用Rytov近似和修正vonKarman折射率起伏谱,建立了单光子轨道角动量斜程湍流大气通信信道中轨道角动量l的测量概率理论模型。本文同时给出了量子信道的单光子轨道角动量平均值l=<l>的计算关系。
【Abstract】 The effect of atmospheric turbulence on quantum optical communication systems based on angular momentum states of single photons is investigated and the detection probabilities of the orbital angular momentum of the photons propagation in slant atmospheric turbulence channel is modeled with Rytov approximation and modified von Karman spectrum model of index-of-refraction fluctuation.The statistical averaging of the orbital angular momentum of single photon in quantum communication channel is given.
【关键词】 大气湍流;
大气传输;
轨道角动量;
光通信;
量子信道;
【Key words】 atmospheric turbulence; atmospheric propagation; orbital angular momentum; optical communication; quantum channel;
【Key words】 atmospheric turbulence; atmospheric propagation; orbital angular momentum; optical communication; quantum channel;
【基金】 上海市科学技术委员会科研计划项目(课题编号:08dz1400700)
- 【文献出处】 激光杂志 ,Laser Journal , 编辑部邮箱 ,2009年05期
- 【分类号】TN929.12
- 【被引频次】9
- 【下载频次】231