Achieving a Strongly Temperature-Dependent Casimir Effect
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e060401.pdf
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Main article
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Author(s)
Woolf, David
McCauley, Alexander Patrick
Capasso, Federico
Rodriguez-Wong, Alejandro
Joannopoulos, John
Johnson, Steven G
Date Issued
August 2010
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Rodriguez, Alejandro W. et al. “Achieving a Strongly Temperature-Dependent Casimir Effect.” Physical Review Letters 105.6 (2010): 060401. ©2010 The American Physical Society.
Version
Final published version
Abstract
We propose a method of achieving large temperature T sensitivity in the Casimir force that involves measuring the stable separation between dielectric objects immersed in a fluid. We study the Casimir force between slabs and spheres using realistic material models, and find large >2 nm/K variations in their stable separations (hundreds of nanometers) near room temperature. In addition, we analyze the effects of Brownian motion on suspended objects, and show that the average separation is also sensitive to changes in T. Finally, this approach also leads to rich qualitative phenomena, such as irreversible transitions, from suspension to stiction, as T is varied.
MIT Department
Massachusetts Institute of Technology. Institute for Soldier Nanotechnologies
Massachusetts Institute of Technology. Department of Mathematics
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevLett.105.060401
