Two Level Atoms in Driven Optical Cavities

本项目主要致力于量子动态状态条件演化的实验研究和量子反馈的发展。该项目将专注于将光学腔的单模与原子集合耦合的腔QED系统。条件测量基于三种类型的相关函数：强度-强度，强度-场，以及一种新的将透射强度与腔外模式的荧光关联起来的相关函数。量子反馈的两种新方法将使研究人员能够扩展参数空间，并允许失谐和直接控制场。反馈是由单个光子的探测引起的，单个光子是量子涨落的最小尺寸。这项工作将阐明量子统计力学和量子信息的新兴领域，因为这项工作关注的是一个涨落大于平均值的强耦合系统。更广泛的影响包括研究生和本科生的教育，以及与其他国际研究团体的学生交流。

This project focuses on the experimental study of the conditional evolution of quantum dynamic states and the development of quantum feedback. The project will focus on cavity QED systems that couple a single mode of an optical cavity with a collection of atoms. The conditional measurements are based on correlation functions of three types: intensity-intensity, intensity-field, and a new one to correlate transmitted intensity and fluorescence out of the cavity mode. Two new approaches to quantum feedback will enable the researchers to expand the parameter space and allow detuning and direct control of the field. The feedback is initiated by the detection of a single photon, the smallest size of a quantum fluctuation. This work will illuminate quantum statistical mechanics and the nascent area of quantum information as the work focuses on a strongly coupled system where the fluctuations are larger than the mean. The broader impact involves education of both graduate and undergraduate students as well as student exchanges with other international research groups.