论文标题
在与纳米镜的相互作用中，两光子状态的纯度保存和破坏
Preservation and destruction of the purity of two-photon states in the interaction with a nanoscatterer
论文作者
论文摘要
纳米结构支持的光学共振为增强物质与光量子之间的相互作用提供了可能性。在这项工作中，我们提供了一个框架，以研究光量状态的散射，并通过纳米结构在其螺旋性中编码的信息。我们分析了散射的输出量子状态的纯度，当它与纳米结构的光学共振相互作用时，入射态的纯度可能会丢失。为了解释量子纯度的丧失，我们根据时间延迟和输出两个光子模式之间的频率偏移来开发物理图片。这项工作提出的框架和分析建立了一种解决量子光与纳米环境之间相互作用的工具。
The optical resonances supported by nanostructures offer the possibility to enhance the interaction between matter and the quantum states of light. In this work, we provide a framework to study the scattering of quantum states of light with information encoded in their helicity by a nanostructure. We analyze the purity of the scattered output quantum state, and we find that the purity of the incident state can be lost, when it interacts with the optical resonances of the nanostructure. To explain the loss of quantum purity, we develop a physical picture based on time delays and frequency shifts between the output two-photon modes. The framework and analysis proposed in this work establishes a tool to address the interaction between quantum light and nanoenvironments.
