Long Range Electromagnetic Interaction and the Casimir Effect (Physics)

长程电磁相互作用和卡西米尔效应（物理学）

• 批准号: 8710118
• 负责人: Chi-Kwan Au
• 金额: $ 9.5万
• 依托单位: University of South Carolina at Columbia
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-08-15 至 1991-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8710118&HistoricalAwards=false
• 关键词: Long; Range; Electromagnetic; Interaction; Casimir

The most promising area to detect long range forces and the Casimir effect lies in electromagnetic interactions. However, the hope of observing this interaction between a pair of atoms is extremely small. Recent precision experiments on the fine structure of helium Rydberg states has given rise to the hope of observing the Casimir interaction between the highly excited electron and the core atom even though for the states studied experimentally, the Rydberg electron is not quite in the asymptotic region where the Casimer effect manifests itself in a pronounced way. A thorough relativistic quantum field theoretic evaluation of the two photon exchange potential in the electron- ion interaction for all distances beyond a few Bohr radii has been carried out recently, and a variety of corrections comparable to the Casimir effect have been estimated. An accurate verification of the Casimir effect seems to be within reach of both theory and experiment. In this proposal, The principal investigator describes recent progress made and plans to improve on the calculations and extend the investigation to a variety of systems of interest.

检测远程力和卡西米尔效应最有希望的领域在于电磁相互作用。 然而，观察到一对原子之间的这种相互作用的希望微乎其微。 最近对氦里德伯态精细结构的精密实验带来了观察高激发电子与核心原子之间卡西米尔相互作用的希望，尽管对于实验研究的态，里德伯电子并不完全处于渐近区域，其中卡西默效应以明显的方式表现出来。 最近，人们对超过几个玻尔半径的所有距离的电子-离子相互作用中的两个光子交换势进行了彻底的相对论量子场论评估，并估计了与卡西米尔效应相当的各种校正。 卡西米尔效应的准确验证似乎是理论和实验都可以实现的。 在这份提案中，首席研究员描述了最近取得的进展，并计划改进计算并将调查扩展到各种感兴趣的系统。