Casimir repulsion between metallic objects in vacuum

Michael Levin; Alexander P. McCauley; Alejandro W. Rodriguez; M. T.Homer Reid; Steven G. Johnson

doi:10.1103/PhysRevLett.105.090403

Casimir repulsion between metallic objects in vacuum

Michael Levin, Alexander P. McCauley, Alejandro W. Rodriguez, M. T.Homer Reid, Steven G. Johnson

Research output: Contribution to journal › Article › peer-review

140 Scopus citations

Abstract

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.

Original language	English (US)
Article number	090403
Journal	Physical review letters
Volume	105
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.105.090403
State	Published - Aug 26 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.105.090403

Cite this

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abstract = "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.",

author = "Michael Levin and McCauley, {Alexander P.} and Rodriguez, {Alejandro W.} and Reid, {M. T.Homer} and Johnson, {Steven G.}",

year = "2010",

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AU - McCauley, Alexander P.

AU - Rodriguez, Alejandro W.

AU - Reid, M. T.Homer

AU - Johnson, Steven G.

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AB - 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.

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Casimir repulsion between metallic objects in vacuum

Abstract

All Science Journal Classification (ASJC) codes

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