Interaction of atomic systems with quantum vacuum beyond electric dipole approximation.

ABSTRACT: The photonic environment can significantly influence emission properties and interactions among atomic systems. In such scenarios, frequently the electric dipole approximation is assumed that is justified as long as the spatial extent of the atomic system is negligible compared to the spatial variations of the field. While this holds true for many canonical systems, it ceases to be applicable for more contemporary nanophotonic structures. To go beyond the electric dipole approximation, we propose and develop in this article an analytical framework to describe the impact of the photonic environment on emission and interaction properties of atomic systems beyond the electric dipole approximation. Particularly, we retain explicitly magnetic dipolar and electric quadrupolar contributions to th

SUBMITTER: Kosik M 

PROVIDER: S-EPMC7125098 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature