2010
DOI: 10.1103/physrevlett.104.160402
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Abstract: We present a scheme for obtaining stable Casimir suspension of dielectric nontouching objects immersed in a fluid, validated here in various geometries consisting of ethanol-separated dielectric spheres and semi-infinite slabs. Stability is induced by the dispersion properties of real dielectric (monolithic) materials. A consequence of this effect is the possibility of stable configurations (clusters) of compact objects, which we illustrate via a "molecular" two-sphere dicluster geometry consiting of two bound… Show more

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Cited by 67 publications
(75 citation statements)
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“…3 shows the isolated Si-PS and TefSi sphere-sphere equilibrium separation d e as a function of the radius R of the spheres. As a consequence of its material dispersion (similar to phenomena observed in [4]), the Si-PS combination exhibits a bifurcation at R ≈ 55 nm where the stable and unstable equilibria, such that there is no equilibrium for larger R (the interaction is purely attractive). The Tef-Si combination exhibits no such bifurcation (even if we extend the plot to R = 300 nm), because it has no unstable equilibrium: the interaction is purely repulsive for small separations and attractive for large separations.…”
Section: A Bifurcationsmentioning
confidence: 96%
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“…3 shows the isolated Si-PS and TefSi sphere-sphere equilibrium separation d e as a function of the radius R of the spheres. As a consequence of its material dispersion (similar to phenomena observed in [4]), the Si-PS combination exhibits a bifurcation at R ≈ 55 nm where the stable and unstable equilibria, such that there is no equilibrium for larger R (the interaction is purely attractive). The Tef-Si combination exhibits no such bifurcation (even if we extend the plot to R = 300 nm), because it has no unstable equilibrium: the interaction is purely repulsive for small separations and attractive for large separations.…”
Section: A Bifurcationsmentioning
confidence: 96%
“…To begin with, let us consider sphere radii on the order of 10 2 nm, as in our previous work [4]. We wish to make a bound dicluster, at some separation d, of two spheres (Si and teflon) that are suspended above a gold substrate by Casimir repulsion in balance with gravity.…”
Section: B the Additive Regimementioning
confidence: 99%
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