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dc.contributor.authorRodriguez, Alejandro W.
dc.contributor.authorReid, M. T. Homer
dc.contributor.authorIntravaia, Francesco
dc.contributor.authorWoolf, Alexander
dc.contributor.authorDalvit, Diego A. R.
dc.contributor.authorCapasso, Federico
dc.contributor.authorJohnson, Steven G.
dc.date.accessioned2019-09-17T13:47:11Z
dc.date.issued2013
dc.identifier.citationRodriguez, Alejandro W., M. T. Homer Reid, Francesco Intravaia, Alexander Woolf, Diego A. R. Dalvit, Federico Capasso, and Steven G. Johnson. 2013. “Geometry-Induced Casimir Suspension of Oblate Bodies in Fluids.” Physical Review Letters 111 (18). https://doi.org/10.1103/physrevlett.111.180402.
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.issn1092-0145
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:41371689*
dc.description.abstractWe predict that a low-permittivity oblate body (disk-shaped object) above a thin metal substrate (plate with a hole) immersed in a fluid of intermediate permittivity will experience a metastable equilibrium (restoring force) near the center of the hole. Stability is the result of a geometry-induced transition in the sign of the force, from repulsive to attractive, that occurs as the disk approaches the hole-in planar or nearly planar geometries, the same material combination yields a repulsive force at all separations, in accordance with the Dzyaloshinskii-Lifshitz-Pitaevskii condition of fluid-induced repulsion between planar bodies. We explore the stability of the system with respect to rotations and lateral translations of the disks and demonstrate interesting transitions (bifurcations) in the rotational stability of the disks as a function of their size. Finally, we consider the reciprocal situation in which the disk-plate materials are interchanged and find that in this case the system also exhibits metastability. The forces in the system are sufficiently large to be observed in experiments and should enable measurements based on the diffusion dynamics of the suspended bodies.
dc.language.isoen_US
dc.publisherAmerican Physical Society
dash.licenseLAA
dc.titleGeometry-Induced Casimir Suspension of Oblate Bodies in Fluids
dc.typeJournal Article
dc.description.versionVersion of Record
dc.relation.journalPhysical Review Letters
dash.depositing.authorCapasso, Federico::c84ca12d0f20adc982c7c314bebd7c9e::600
dc.date.available2019-09-17T13:47:11Z
dash.workflow.comments1Science Serial ID 78786
dc.identifier.doi10.1103/PhysRevLett.111.180402
dash.source.volume111;18


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