Casimir Repulsion between Metallic Objects in Vacuum
Author(s)Levin, Michael; McCauley, Alexander Patrick; Rodriguez, Alejandro W.; Reid, M. T. Homer; Johnson, Steven G.
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We give an example of a geometry in which two metallic objects in vacuum experience a repulsive Casimir force. The geometry consists of an elongated metal particle centered above a metal plate with a hole. We prove that this geometry has a repulsive regime using a symmetry argument and confirm it with numerical calculations for both perfect and realistic metals. The system does not support stable levitation, as the particle is unstable to displacements away from the symmetry axis.
DepartmentMassachusetts Institute of Technology. Department of Mathematics; Massachusetts Institute of Technology. Department of Physics
Physical Review Letters
American Physical Society
Levin, Michael et al. “Casimir Repulsion between Metallic Objects in Vacuum.” Physical Review Letters 105.9 (2010): 090403. © 2010 The American Physical Society.
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