Higher-Order QED Effects in Bound Systems: Virtual-Loop Corrections and Atomic Interactions

量子电动力学(QED)是理论物理中一个要求很高的子领域：既面临场理论方面的困难，也面临场计算方面的困难和挑战。通常，为了在目前的理解水平上推进理论，并为了在该领域组织一个正常运作的工作组，有必要为这些活动提供博士后支持，因为要求苛刻的计算依赖于以前在实地理论或数值研究中获得的知识，或者最好是在两者中都有。在这里，在位于海德堡的海森堡青年研究员研究小组内，提出了一项建议，其中包括由两名博士后科学家支持小组活动，以解决在束缚态计算以及其他面向应用的方法(包括原子与导电表面的相互作用)中难度增加的各种主题问题。

Quantum electrodynamics (QED) is a highly demanding subfield of theoretical physics: one faces both field theoretical as well as numerical difficulties and challenges. Typically, in order to advance theory from the current level of understanding and in order to organize a functioning work group in this domain, it is necessary to have postdoctoral support for the activities, because the demanding calculations depend on previously acquired knowledge either in field theory or in numerical studies, or preferably in both. Here, within a Heisenberg Fellow Junior Research Group located in Heidelberg, a proposal is offered which includes a support of the group activities by two postdoctoral scientists, to solve various topical problems of an increased level of difficulty, in both bound-state calculations as well as in other, application-oriented approaches that include the interaction of atoms with conducting surfaces.