叠加原理
角动量
物理
混合(物理)
量子
光的轨道角动量
四波混频
梁(结构)
领域(数学)
模式(计算机接口)
量子信息
拓扑(电路)
量子力学
光学
非线性系统
非线性光学
总角动量
计算机科学
数学
操作系统
组合数学
纯数学
作者
Xiaozhou Pan,Shengkai Yu,Kai Zhang,Jietai Jing
摘要
Orbital angular momentum (OAM), characterized by a topological charge ℓ (ℓ integer), serves as a promising vehicle for carrying quantum information. Generating a nonclassical field involving two or more OAM modes can largely enhance the data-carrying capacity of quantum information processing. In this Letter, we present the implementation of a four-wave mixing (FWM) process, featuring a pump beam of a coherent OAM superposition mode and a probe beam of a single OAM mode. We generate twin beams encompassing multiple OAM modes and illustrate their quantum correlation when the pump beam assumes different coherent OAM superposition modes. Furthermore, we analyze the OAM mode components in each output field to deepen our understanding of the nonlinear interaction among different OAM modes. The obtained results show the rich structure of the nonlinear interaction of OAM modes in the FWM process and provide a perspective to study quantum information protocols.
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