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

量子电动力学（QED）是理论物理学的一个高要求的子领域：人们面临着场论和数值计算的困难和挑战。通常情况下，为了从目前的理解水平推进理论，并为了在这一领域组织一个有效的工作组，有必要为这些活动提供博士后支持，因为要求苛刻的计算取决于以前获得的知识，无论是在场论还是在数值研究中，或者最好是在两者中。在这里，在海森堡研究员青年研究小组位于海德堡，提供了一个建议，其中包括两个博士后科学家的小组活动的支持，以解决各种热点问题的难度增加，在两个束缚态计算以及在其他，面向应用的方法，包括原子与导电表面的相互作用。

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.