Cavity-Enhanced Superradiant Phenomena in Optically Trapped Atomic Ytterbium

本项目重点研究强光学超辐射，利用磁光阱和短记忆时间光学腔中包含的冷镱原子。强超辐射包括辐射衰减，其中材料样品内的相关性导致辐射能量衰减在时间尺度上与组成量子系统的自然寿命有很大不同。短记忆时间空腔的使用加速了在特定原子样品内发生超辐射的时间尺度，同时保持系统动力学不变。因此，在光学薄的原子样品中可以观察到强超辐射，因此在没有样品内场传播效应的情况下。使用腔加速和本质上不脱相的原子镱提供了第一个实验机会来证明和研究在类似于原始描述中假设的条件下的强超辐射。

This project focuses on a study of strong optical superradiance that utilizes cold ytterbium atoms contained within a magneto-optical trap and a short-memory-time optical cavity. Strong superradiance comprises the regime of radiative decay where correlations within a material sample lead to radiative energy damping on time scales substantially different from the natural lifetime of the constituent quantum systems. The use of the short-memory-time cavity accelerates the time scale on which superradiance occurs within a specific atomic sample while leaving the system dynamics otherwise unchanged. As a result, strong superradiance can be observed in optically thin atomic samples and therefore in the absence of intra-sample field propagation effects. The use of cavity acceleration and essentially non-dephasing atomic ytterbium provides the first experimental opportunity to demonstrate and investigate strong superradiance under conditions similar to those assumed in original descriptions.