摘要
20世纪90年代,对于激光泵浦非线性晶体产生的纠缠双光子对之间的空间关联基本物理特征,Klyshko提出了一种有效场的描述方法,称为超前波(advanced wave)。这样双光子光学的问题容易由传统的单光子光学来理解,这也是人类认识自然规律的基本方法。但超前波解释成立的前提需要光路传播的脉冲响应函数满足一个基本关系,本文对该基本关系成立的理论基础进行了讨论。
In the 90s of the last century,Klyshko proposed an effective field method,based on the advanced wave concept,to describe the basic physical characteristics of spatial correlation for entangled two-photon pairs generated in a laser-pumped nonlinear crystal.As a result,the issue of two-photon optics can be understood by conventional one-photon optics.This is a fundamental way to understand one of the laws of nature for mankind.However,the a priori condition of the advanced wave interpretation requires a basic relationship for the impulse response function of the optical system.Here a theoretical demonstration of the basic relationship is presented and discussed.
作者
汪凯戈
WANG Kai-ge(Department of Physics,Applied Optics Beijing Area Major Laboratory,Beijing Normal University,Beijing 100875,China)
出处
《量子光学学报》
北大核心
2023年第3期8-13,共6页
Journal of Quantum Optics
基金
国家自然科学基金(12274037)。
关键词
双光子纠缠态
超前波
脉冲响应函数
量子成像
two-photon entangled state
advanced wave
impulse response function
quantum imaging
