Conditional evolution and real-time feedback in open quantum systems

本研究项目主要致力于腔QED中单原子动力学的连续观测和反馈控制的实验和理论研究。重点将是一类新发现的超临界霍普夫分岔，预测的半经典和量子模型的原子腔动力学。该计划是通过实时滤波和反馈的实验来研究这些模型之间的量子经典对应关系，并使用单原子分叉作为研究量子涨落与半经典动力学不稳定性的相互作用的背景。我们将利用法布里-珀罗光学谐振腔和磁性微结构引导的原子，建立一个腔QED实验装置。更广泛的影响涉及研究生教育以及多样性和外联工作。

This research project focuses on experimental and theoretical research on continuous observation and feedback control of single-atom dynamics in cavity QED. The focus will be on a newly discovered class of supercritical Hopf bifurcations that are predicted both by semi-classical and quantum models for the atom-cavity dynamics. The plan is to investigate quantum-classical correspondence between these models via experiments with real-time filtering and feedback, and to use single-atom bifurcations as a setting to study the interaction of quantum fluctuations with semi-classical dynamical instabilities. An experimental apparatus to perform cavity QED with a Fabry-Perot optical resonator and atoms guided by a magnetic micro-structure will be constructed. The broader impact involves education of graduate students as well as efforts in diversity and outreach.