Robust matter-light entanglement generation and distribution

这个项目的总主题是通过探索光和物质之间的纠缠和超冷原子的系综来研究创建、分配和存储量子力学状态的方法。纠缠是量子力学最显著的特征之一，它导致物理系统中不同组件之间的强关联，而不管它们之间的距离有多远。该项目的第一个具体目标是开发方法，利用超冷原子系综在光和物质之间建立强大的纠缠。该项目建立在之前实现的混合物种原子量子比特(称为量子比特)和频率编码的光子量子比特的纠缠基础上。该方法避免了使用两个干涉测量分离的路径来分配量子比特纠缠。第二个目标是在电信波长实现物质-光纠缠，作为一种能够远距离分发和存储纠缠的技术。该计划的最后一个组成部分包括对连续测量下的纠缠系统的动力学进行研究。实现这些目标将极大地发展基于原子物理的方法来处理量子信息。该计划包括对本科生和研究生进行广泛的培训，并参与重要技术领域的物理学。该项目将包括通过实验室之旅和为当地高中教师举办暑期讲习班，与亚特兰大社区进行接触。

The general theme of this project is to investigate methods to create, distribute, and store quantum mechanical states by exploring entanglement between light and matter with ensembles of ultracold atoms. Entanglement, one of the most striking features of quantum mechanics, leads to strong correlations between separate components of a physical system, regardless of the distance separating them. The first specific goal of the project is to develop methods of creating robust entanglement between light and matter with ensembles of ultracold atoms. This project builds upon previously realized entanglement of mixed species atomic "quantum bits" (called qubits) and frequency-encoded photonic qubits. The approach avoids the use of two interferometrically separate paths for qubit entanglement distribution. The second goal is to realize matter-light entanglement at telecommunications wavelengths as an enabling technology to distribute and store entanglement over long distances. The final component of the program involves investigations of dynamics of the entangled systems subjected to continuous measurement.Achieving these goals should significantly develop atomic physics-based methods for the processing of quantum information. The program involves extensive undergraduate and graduate student training and participation in technologically important areas of physics. The project will include outreach to the Atlanta community through laboratory tours and summer workshops for local high-school teachers.