Universal Casimir interaction between two dielectric spheres in salted water

  • We study the Casimir interaction between two dielectric spheres immersed in a salted solution at distances larger than the Debye screening length. The long distance behavior is dominated by the nonscreened interaction due to low-frequency transverse magnetic thermal fluctuations. It shows universality properties in its dependence on geometric dimensions and independence of dielectric functions of the particles, with these properties related to approximate conformal invariance. The universal interaction overtakes nonuniversal contributions at distances of the order of or larger than 0.1  μm, with a magnitude of the order of the thermal scale kBT such as to make it important for the modeling of colloids and biological interfaces.

Download full text files

Export metadata


Number of document requests

Additional Services

Share in Twitter Search Google Scholar
Author:Tanja SchogerORCiD, Benjamin SprengORCiD, Gert-Ludwig IngoldORCiDGND, Paulo A. Maia NetoORCiD, Serge ReynaudORCiD
Frontdoor URLhttps://opus.bibliothek.uni-augsburg.de/opus4/96085
Parent Title (English):Physical Review Letters
Publisher:American Physical Society
Year of first Publication:2022
Publishing Institution:Universität Augsburg
Release Date:2022/06/13
First Page:230602
Institutes:Mathematisch-Naturwissenschaftlich-Technische Fakultät
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik
Mathematisch-Naturwissenschaftlich-Technische Fakultät / Institut für Physik / Lehrstuhl für Theoretische Physik I
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):Deutsches Urheberrecht