Integrated optical devices will play a central role in the future development of nonlinear quantum photonics. Here we consider the generation of nonclassical states of light within them with a focus on Gaussian states beyond the low-gain, single photon pair regime accurately described by perturbation theory. Starting from the solid foundation provided by Maxwell’s equations, we then move to applications by presenting a unified formulation that allows for a comparison of stimulated and spontaneous experiments in ring resonators and nanophotonic waveguides and leads directly to the calculation of the quantum states of light generated in high-gain nonlinear quantum photonic experiments.

中文翻译：

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超越光子对——高增益状态下的非线性量子光子学：教程

集成光学器件将在非线性量子光子学的未来发展中发挥核心作用。在这里，我们考虑在它们内部产生非经典光状态，重点关注超出微扰理论准确描述的低增益单光子对状态的高斯状态。从麦克斯韦方程提供的坚实基础开始，我们通过提出一个统一的公式转移到应用程序，该公式允许比较环形谐振器和纳米光子波导中的受激和自发实验，并直接导致计算产生的光的量子态高增益非线性量子光子实验。