Physics with New Atomic Systems: Quantum Interactions, Cooling, & Applications

新原子系统物理学：量子相互作用、冷却、

• 批准号: 1067990
• 负责人: John Doyle
• 金额: $ 65万
• 依托单位: Harvard University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-15 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1067990&HistoricalAwards=false
• 关键词: Physics; New; Atomic; Systems; Quantum

The physics of cold atoms is only partially known and our information is generally limited to only a few kinds of atoms. In this project we are working to uncover the collisional properties of atoms that are new to the cold and ultracold regime, and extend methods for their creation and manipulation. The atoms being studied are drawn from the pnictogens and halogens (for example, Nitrogen and Chlorine), so far nearly untouched in the realm of cold atoms. By trapping and cooling these atoms, we will learn whether they can be made into quantum gases and how they interact as they collide with each other in a cold, dilute gas. Such behavior is among the most fundamental collision phenomena in Nature. We are also working toward the practical realization of a hybrid cold atoms source using laser cooling along with buffer-gas cooling, with the aim of creating higher flux cold atom beam technology.Broadly speaking, the importance of this work is to uncover new science and open up new vistas in the use of cold atoms. Due to the fundamental nature of these collision studies, it may be the largest impact will involve new ideas and technologies that are as yet unknown. Potential applications include higher precision spectroscopy of key atoms found in space and the atmosphere and increased numbers of trapped atoms for a variety or work, including improving the qualities of technological materials.

冷原子的物理学只有一部分是已知的，我们的信息通常仅限于少数几种原子。在这个项目中，我们致力于揭示原子在寒冷和超冷状态下的碰撞性质，并扩展它们的产生和操纵方法。正在研究的原子是从致癌物质和卤素(例如氮和氯)中提取的，到目前为止，在冷原子领域几乎没有人接触过它们。通过捕获和冷却这些原子，我们将了解它们是否可以被制成量子气体，以及它们在寒冷、稀薄的气体中相互碰撞时如何相互作用。这种行为是自然界中最基本的碰撞现象之一。我们还致力于利用激光冷却和缓冲气体冷却的混合冷原子源的实际实现，目的是创造更高通量的冷原子束技术。从总体上说，这项工作的重要性是在冷原子的使用方面发现新的科学，开辟新的前景。由于这些碰撞研究的根本性质，它可能最大的影响将涉及到尚不为人所知的新想法和技术。潜在的应用包括对在太空和大气层中发现的关键原子进行更高精度的光谱分析，以及为各种或工作增加捕获原子的数量，包括提高技术材料的质量。