Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-touching nanoparticle diclusters bound by repulsive and attractive
  Casimir forces   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 spheres
levitated above a gold slab. Our calculations also reveal a strong interplay
between material and geometric dispersion, and this is exemplified by the
qualitatively different stability behavior observed in planar versus spherical
geometries.

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The categories of this paper are: hep-ex
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The categories of this paper are: atom-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
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The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: dg-ga