PhysRevA.83.052514.pdf (418.93 kB)
Casimir-Polder interaction between a polarizable particle and a plate with a hole
journal contribution
posted on 2023-06-07, 22:23 authored by Claudia Eberlein, Robert ZietalWe 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.
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- Published
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- Published version
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Physical Review AISSN
1050-2947External DOI
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5Volume
83Page range
052514-1-052514-4Department affiliated with
- Physics and Astronomy Publications
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- Yes
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- Yes
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2012-02-06First Open Access (FOA) Date
2016-03-22First Compliant Deposit (FCD) Date
2017-03-07Usage metrics
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