Atom Optics and Interferometry with Cold Atoms

原子光学和冷原子干涉测量

• 批准号: 0457451
• 负责人: David Pritchard
• 金额: --
• 依托单位: Massachusetts Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-06-01 至 2009-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0457451&HistoricalAwards=false
• 关键词: Atom; Optics; Interferometry; Cold; Atoms

This experimental research program is aimed at efforts in atom optics and interferometry experiments using cold atoms. The primary emphasis will be the development of atom interferometers with confined atoms, e.g. atoms confined in waveguides or trapping potentials between the beamsplitters. The secondary focus of the group will be a precision experiment using a novel atom interferometer with unconfined atoms to measure the fine structure constant at the parts per billion level. This will be used to measure h/m, which will be combined with the group's recent atomic mass measurements to determine the molar Planck constant. This can be combined with other recent mass measurements (plus the Rydberg constant) to yield a measurement of the fine structure constant alpha. The broader impact of the program is in education of the graduates students as well as efforts at on the development of a web based tutorial system for physics.

该实验研究计划旨在利用冷原子进行原子光学和干涉测量实验。 主要的重点将是原子干涉仪的发展与限制原子，例如，原子限制在波导或捕获分束器之间的潜力。该小组的第二个重点将是一个精确的实验，使用一种新的原子干涉仪与非约束原子测量精细结构常数在十亿分之一的水平。 这将被用来测量h/m，这将与该小组最近的原子质量测量相结合，以确定摩尔普朗克常数。这可以与其他最近的质量测量（加上里德伯常数）相结合，以产生精细结构常数α的测量。该计划的更广泛的影响是在研究生的教育，以及努力在基于网络的物理教程系统的发展。