Atoms and small molecules interacting with strong external fields.

原子和小分子与强外部场相互作用。

• 批准号: RGPIN-2017-05655
• 负责人: Horbatsch, Marko
• 金额: $ 1.53万
• 依托单位: York University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633072
• 关键词: Atoms; small; molecules; interacting; strong

The fundamental-physics part of the proposal aims for a more accurate determination of a fundamental constant and of properties of the proton, which most of the matter in the universe is made of. The fine-structure constant determines the strength of the coupling between charged particles, and also to photons, i.e., to light. It is known to nine digits to date, and has been determined by a number of methods in solid-state physics and in atomic spectroscopy. It needs to be known better for tests of the theory of electron-photon interactions, called quantum electrodynamics. While this is the most precisely known part of the standard model, there is a continuing push for more precise knowledge due to progress in atomic spectroscopy.

该提案的基础物理部分旨在更准确地确定质子的基本常数和性质，宇宙中大多数物质都是由质子组成的。精细结构常数决定了带电粒子之间以及与光子之间的耦合强度，即，光。迄今为止，已知它有九位数，并且已通过固态物理学和原子光谱学中的多种方法确定。为了检验电子-光子相互作用的理论，也就是量子电动力学，我们需要更好地了解它。虽然这是标准模型中已知最精确的部分，但由于原子光谱学的进步，人们一直在不断地推动更精确的知识。