Effective Polarisability Models
Chemical Physics
2019-06-05 v1 Soft Condensed Matter
Quantum Physics
Abstract
Theories for the effective polarisability of a small particle in a medium are presented using different levels of approximation: we consider the virtual cavity, real cavity and the hard-sphere models as well as a continuous interpolation of the latter two. We present the respective hard-sphere and cavity radii as obtained from density-functional simulations as well as the resulting effective polarisabilities at discrete Matsubara frequencies. This enables us to account for macroscopic media in van der Waals interactions between molecules in water and their Casimir-Polder interaction with an interface.
Cite
@article{arxiv.1710.04945,
title = {Effective Polarisability Models},
author = {Johannes Fiedler and Priyadarshini Thiyam and Anurag Kurumbail and Friedrich Burger and Michael Walter and Clas Persson and Iver Brevik and Drew F. Parsons and Mathias Boström and Stefan Y. Buhmann},
journal= {arXiv preprint arXiv:1710.04945},
year = {2019}
}