测量微弱量子光的高阶光子关联：一个简短的评论
Measuring higher-order photon correlations of faint quantum light: a short review
摘要：
归一化的关联函数为确定光的光子数特性提供了方便的手段。这些高阶矩，也称为光子数的归一化阶乘矩，可以用于快速状态分类和深入状态表征。此外，非经典性标准已根据其性质导出。幸运的是，归一化高阶矩的测量通常是与损耗无关的，这使得它们在有损耗的光学设置和不完美的探测器下的观测在实验上很有吸引力。归一化的高阶矩可以例如从用真正的光子数分辨检测器测量的光子数分布中提取，或者按照Hanbury Brown和Twiss实验的精神经由流形符合计数直接访问。或者，它们可以通过零差检测来推断。在这里，我们提供了不同类型的状态分类和表征任务的概述，这些任务使用归一化高阶矩，并考虑用自由传播光测量它们的不同方面。
英文摘要：
Normalized correlation functions provide expedient means for determining the photon-number properties of light. These higher-order moments, also called the normalized factorial moments of photon number, can be utilized both in the fast state classification and in-depth state characterization. Further, non-classicality criteria have been derived based on their properties. Luckily, the measurement of the normalized higher-order moments is often loss-independent making their observation with lossy optical setups and imperfect detectors experimentally appealing. The normalized higher-order moments can for example be extracted from the photon-number distribution measured with a true photon-number-resolving detector or accessed directly via manifold coincidence counting in the spirit of the Hanbury Brown and Twiss experiment. Alternatively, they can be inferred via homodyne detection. Here, we provide an overview of different kind of state classification and characterization tasks that take use of normalized higher-order moments and consider different aspects in measuring them with free-traveling light.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
