Stable Levitation and Alignment of Compact Objects by Casimir Spring Forces
Name
Rahi-2010-Stable Levitation and Alignment of Compact Objects by Casimir Spring Forces.pdf
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213.83 KB
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Author(s)
Rahi, Sahand Jamal
Zaheer, Saad
Date Issued
February 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Rahi, Sahand Jamal, and Saad Zaheer. “Stable Levitation and Alignment of Compact Objects by Casimir Spring Forces.” Physical Review Letters 104.7 (2010): 070405. © 2009 The American Physical Society
Version
Final published version
Abstract
We investigate a stable Casimir force configuration consisting of an object contained inside a spherical or spheroidal cavity filled with a dielectric medium. The spring constant for displacements from the center of the cavity and the dependence of the energy on the relative orientations of the inner object and the cavity walls are computed. We find that the stability of the force equilibrium—unlike the direction of the torque—can be predicted based on the sign of the force between two slabs of the same material.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.104.070405
