Relativistic Electron-Photon Interactions in the Atomic Field

原子场中的相对论性电子-光子相互作用

• 批准号: 0456499
• 负责人: David Turnshek
• 金额: --
• 依托单位: University of Pittsburgh
• 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: 2005-07-01 至 2009-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0456499&HistoricalAwards=false
• 关键词: Relativistic; Electron; Photon; Interactions; Atomic

It is intended to undertake several related investigations into processes of high energy atomicphysics, including their extension toward lower energies. This involves studying the interactionsof photons and electrons with correlated atomic structures, including circumstances in whichthere are several interacting continuum particles in the final state. These studies can yieldunderstanding of the role of relativistic, retardation and higher multipole effects in regimeswhere they become comparable to or dominate the many electron correlation effects, and it canlead to an identification of the nature of the correlation effects which persist at high energies.Specific studies include: examining high energy behaviors of atomic processes, the extent towhich these behaviors follow from the singularities of photon and electron interactions, and theextent to which they depend on correlations; understanding other global features of processes,such as analyticity, also the trajectories of zeroes which serve as a surrogate for structuralinformation; clarifying the relations and transitions between classical and quantum behavior; andstudying the relationships among observables, partitioning, and entanglement. Other projectsinclude considerations of deficiencies in the description of basic processes, such as Delbruckscattering and bremsstrahlung, and characterization of atomic processes (such asphotoionization, Rayleigh and Compton scattering and bremsstrahlung) and the independentatomic information they contain.

它的目的是进行几个相关的研究，高能原子物理学的过程，包括他们向低能量的扩展。这涉及到研究光子和电子与相关原子结构的相互作用，包括在最终状态下有几个相互作用的连续体粒子的情况。这些研究可以帮助我们理解相对论效应、延迟效应和更高的多极效应的作用，在这些效应中，它们可以与许多电子相关效应相媲美或占主导地位，并且可以帮助我们识别在高能下持续存在的相关效应的性质。具体的研究包括：研究原子过程的高能行为，这些行为在多大程度上是由光子和电子相互作用的奇异性引起的，以及它们在多大程度上依赖于相关性;理解过程的其他全局特征，如解析性，以及作为结构信息替代品的零轨迹;澄清经典和量子行为之间的关系和转变;研究可观测量，分割和纠缠之间的关系。其他项目包括考虑基本过程描述中的缺陷，如德尔布鲁克散射和韧致辐射，以及原子过程的表征（如光电离，瑞利和康普顿散射和韧致辐射）和它们所包含的独立原子信息。