Eberlein, Claudia and Zietal, Robert (2011) Casimir-Polder interaction between a polarizable particle and a plate with a hole. Physical Review A, 83 (5). 052514-1-052514-4. ISSN 1050-2947
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Abstract
We determine exactly the nonretarded Casimir-Polder interaction between a neutral but polarizable particle and a perfectly reflecting sheet containing a circular hole. The calculation reveals a strong dependence of the interaction on the orientation of the particle's electric dipole moment with respect to the surface. For a dipole moment that is polarized perpendicularly to the surface, the interaction potential has two saddle points lying above and below the plane of the surface on a line through the center of the aperture. For a dipole moment that is polarized parallel to the surface, there is only one saddle point right in the middle of the aperture. Provided the particles' motion could be confined to a line through the middle of the aperture, this effect could potentially be used for population-sensitive trapping of particles.
Item Type: | Article |
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Schools and Departments: | School of Mathematical and Physical Sciences > Physics and Astronomy |
Depositing User: | Claudia Eberlein |
Date Deposited: | 06 Feb 2012 19:16 |
Last Modified: | 02 Jul 2019 20:48 |
URI: | http://sro.sussex.ac.uk/id/eprint/19819 |
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