Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Phase space focusing in dissipative driven elliptical billiards   We study the interplay of dissipation and harmonic driving in the elliptical
billiard. These two competing processes balance each other, which leads to a
destruction of Fermi acceleration and thus to a saturation of the ensemble
averaged velocity. In particular, the emergence of dynamical attractors sharply
focuses the ensemble onto certain parts of phase space. The population of
individual attractors can be controlled by adding small hyperbolic elements to
certain parts of the boundary of the billiard. Furthermore, the position of the
attractors in momentum space can be adjusted by tuning parameters like the
dissipation constant or the driving amplitude and frequency. Thus, the
dissipative, driven elliptical billiard represents a powerful tool for particle
preparation.

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The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
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The categories of this paper are: patt-sol
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
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The categories of this paper are: cs
21
The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ex