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Effective Polarizability Models

Year: 2017
Type: article
Abstract: Theories for the effective polarizability 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 polarizabilities 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.
DOI: 10.1021/acs.jpca.7b10159
Authors: Johannes Fiedler, Priyadarshini Thiyam, Anurag Kurumbail, Friedrich A. Burger, Michael Walter, Clas Persson, Iver Brevik, Drew F. Parsons, Mathias Boström, Stefan Y. Buhmann
Institutions: University of Freiburg, University of Oslo, KTH Royal Institute of Technology, Norwegian University of Science and Technology, Fraunhofer Institute for Mechanics of Materials, Murdoch University
Language: English
Open Access status: green
OpenAlex ID: W2765282938
FWCI: 2.138
Cites: 50
Cited by: 49
Related to: 10