Test of the proximity force approximation
2009 (English)In: Journal of Physics: Conference Series, ISSN 1742-6588, Vol. 161, 012016- p.Article in journal (Refereed) Published
We study the geometrical corrections to the simple Proximity Force Approximation (PFA) for the non-retarded Casimir force. We extend traditional PFA in two ways: We take the whole surfaces of the objects facing each other into account, not just the curvatures at the point of closest distance; we take the thickness of the coating of coated objects into account in the formalism. We present analytical and numerical results for a sphere above a substrate, for a spherical shell above a substrate, and for two interacting spheres. We compare the results to those from a multi-polar expansion method, a method based on a more solid foundation.
Place, publisher, year, edition, pages
2009. Vol. 161, 012016- p.
National CategoryNatural Sciences
IdentifiersURN: urn:nbn:se:liu:diva-21267DOI: 10.1088/1742-6596/161/1/012016OAI: oai:DiVA.org:liu-21267DiVA: diva2:241044
Original Publication: Bo E. Sernelius and C.E. Roman-Velazquez, Test of the proximity force approximation, 2009, Journal of Physics: Conference Series, (161), 012016. http://dx.doi.org/10.1088/1742-6596/161/1/012016 Copyright: Institute of Physics http://journals.iop.org/2009-09-302009-09-302014-06-24