Hide menu

Intermolecular Casimir-Polder forces in water and near surfaces

Priyadarshini Thiyam, Clas Persson, Bo E. Sernelius, Drew F. Parsons, Anders Malthe-Sørenssen, and Mathias Boström,

Phys. Rev. E 90, 032122 – Published 18 September 2014

DOI: http://dx.doi.org/10.1103/PhysRevE.90.032122

The Casimir-Polder force is an important long-range interaction involved in adsorption and desorption of molecules in fluids. We explore Casimir-Polder interactions between methane molecules in water, and between a molecule in water near SiO2 and hexane surfaces. Inclusion of the finite molecular size in the expression for the Casimir-Polder energy leads to estimates of the dispersion contribution to the binding energies between molecules and between one molecule and a planar surface.

Comparing the Casimir-Polder energy of finite-sized methane in water near different surfaces. SiO2 surface attracts the methane molecule while hexane and air surfaces repel it

Responsible for this page: Fei Wang

Last updated: 10/09/14