Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Granular Brownian Motors: role of gas anisotropy and inelasticity   We investigate the motion of a wedge-shaped object (a granular Brownian
motor), which is restricted to move along the x-axis and cannot rotate, as gas
particles collide with it. We show that its steady-state drift, resulting from
inelastic gas-motor collisions, is dramatically affected by anisotropy in the
velocity distribution of the gas. We identify the dimensionless parameter
providing the dependence of this drift on shape, masses, inelasticity, and
anisotropy: the anisotropy leads to a dramatic breaking of equipartition, which
should easily be visible in experimental realizations.

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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
1
The categories of this paper are: cs
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The categories of this paper are: patt-sol
28
The categories of this paper are: alg-geom
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The categories of this paper are: math-ph
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The categories of this paper are: eess
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn