| Issue |
Europhys. Lett.
Volume 67, Number 2, July 2004
|
|
|---|---|---|
| Page(s) | 191 - 197 | |
| Section | Interdisciplinary physics and related areas of science and technology | |
| DOI | https://doi.org/10.1209/epl/i2003-10282-0 | |
| Published online | 01 July 2004 | |
High-multipolar effects on the Casimir force: The non-retarded limit
Instituto de Física, Universidad Nacional Autónoma de México Apartado Postal 20-364, D.F. 01000, México
Received:
6
October
2003
Accepted:
6
May
2004
We implement a spectral representation formalism to calculate
exactly the non-retarded Casimir force or dispersive van der
Waals force, between a spherical nanoparticle and a planar
substrate beyond the dipolar approximation. For a sphere of
radius R separated a distance z from the substrate, we find
that high-order multipole interactions induce extra factors 
in the force, as compared to the dipole power law of 
. As a consequence, at small separations the non-retarded
Casimir force increases by several orders of magnitude with
respect to that estimated in the usual dipole approximation.
PACS: 12.20.Ds – Quantum electrodynamics: Specific calculations / 12.20.Fv – Quantum electrodynamics: Experimental tests / 41.20.-q – Applied classical electromagnetism
© EDP Sciences, 2004
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