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Three-body Casimir effects and nonmonotonic forces

Author(s)
Rodriguez-Lopez, Pablo; Rahi, Sahand Jamal; Emig, Thorsten
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Abstract
Casimir interactions are not pairwise additive. This property leads to collective effects that we study for a pair of objects near a conducting wall. We employ a scattering approach to compute the interaction in terms of fluctuating multipoles. The wall can lead to a nonmonotonic force between the objects. For two atoms with anisotropic electric and magnetic dipole polarizabilities, we demonstrate that this nonmonotonic effect results from a competition between two- and three-body interactions. By including higher-order multipoles we obtain the force between two macroscopic metallic spheres for a wide range of sphere separations and distances to the wall.
Date issued
2009-08
URI
http://hdl.handle.net/1721.1/51072
Department
Massachusetts Institute of Technology. Department of Physics
Journal
Physical Review A
Publisher
American Physical Society
Citation
Rodriguez-Lopez, Pablo , Sahand Jamal Rahi, and Thorsten Emig. “Three-body Casimir effects and nonmonotonic forces.” Physical Review A 80.2 (2009): 022519. (C) 2010 The American Physical Society.
Version: Final published version
ISSN
1094-1622
1050-2947

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