Atom Noise

原子噪声

• 批准号: 9514826
• 负责人: John Thomas
• 金额: $ 35.1万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-04-15 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9514826&HistoricalAwards=false
• 关键词: Atom; Noise

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.

这是一个研究简单辐射系统中原子噪声源的程序。 这种噪声是限制最先进的高精度光学测量精度的因素，并且在实验限制诸如产生压缩态和研究陷阱中的超冷原子等方面发挥着重要作用。 利用原子束技术，研究集中在三个领域：隔离和分别识别不同的噪声源;开发用于测量原子相关函数的“内部原子分束器”;以及探索连续空间光子回波的方向噪声。 除了在原子和光学物理的其他领域有直接的应用外，这项工作还探讨了测量的基本量子力学定义。