Temporal separation of Fock states using cold atomic ensemble in a high-finesse cavity

在这项工作中，我们的目标是使用高精细腔中的冷原子系综来在时间上分离Fock态。这种分离是通过强耦合原子-腔系统中的少光子非线性实现的。为了实现这一目标，我们设计并建造了一种新型的高精细度腔以及一个传输腔来稳定主腔。我们还准备了一个激光光源，用于将原子系综囚禁在腔模中。除真空系统外，我们已经基本完成了实验装置的搭建。此外，我们还对Fock态的分离与光子统计的时间演化之间的关系进行了理论分析。这样的理论框架有望使我们能够对实验数据进行详细的分析。

In this work we aim to temporally separate Fock states using a cold atomic ensemble in a high-finesse cavity. The separation is enabled by few-photon nonlinearity in a strongly-coupled atom-cavity system. In order to achieve this goal, we designed and built a novel high-finesse cavity as well as a transfer cavity to stabilize the main cavity. We also prepared a laser source to be used for trapping an atomic ensemble within the cavity mode. Aside from the vacuum system, we have thus mostly completed the construction of the experimental setup. In addition, we have performed a theoretical analysis of the relationship between the separation of Fock states and the time evolution of photon statistics. Such a theoretical framework is expected to enable us a detailed analysis of the experimental data.