# Mainz 2017 – wissenschaftliches Programm

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# Q: Fachverband Quantenoptik und Photonik

## Q 10: Quantum Effects: QED II

### Q 10.2: Vortrag

### Montag, 6. März 2017, 17:15–17:30, P 4

**Coulomb interaction in generic environments** — •Pablo Barcellona, Robert Bennett, and Stefan Yoshi Buhmann — Institute of Physics, Albert-Ludwigs University of Freiburg

We consider the the Coulomb force between two point charges in general environments, constituted by magnetodielectric bodies. The environment is taken into account via the classical Green tensor. We describe the interaction as arising from the exchange of one photon between the pair of charges, using time-independent perturbation theory. Screening for spatially-dispersive media, polarization effects for non-translationally invariant systems and local-field corrections are included and discussed. In the limit of dilute polarizable media we recover the interaction between a charged particle and a polarizable molecule.