Atom Noise

这是一个研究简单辐射系统中的原子噪声源的程序。这种噪声是最先进的高精度光学测量精度的限制因素，并在对压缩态的产生和陷阱中超冷原子的研究等工作施加的实验限制中发挥着重要作用。利用原子束技术，这项研究集中在三个领域：分离和单独识别不同的噪声源；开发用于测量原子关联函数的“内部原子分束器”；以及探索连续空间光子回波的方向噪声。除了直接应用于原子和光学物理的其他领域外，这项工作还探索了测量的基本量子力学定义。

This is a program to study atomic noise sources in simple radiating systems. Such noise is the limiting factor in the accuracy with which the most advanced high-precision optical measurements can be made and plays a significant role in the experimental limitations imposed on efforts such as the production of squeezed states and the study of ultra-cold atoms in traps. Using atomic-beam techniques, the research concentrates on three areas: isolating and separately identifying different sources of noise; development of "internal atomic beam splitters" for measurements of atomic correlation functions; and exploration of direction noise of continuous spatial photon echoes. In addition to having immediate application in other areas of atomic and optical physics, this work also probes the fundamental quantum mechanical definition of measurement.