Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Huge broadening of the crystal-fluid interface for sedimenting colloids   For sedimenting colloidal hard spheres, the propagation and broadening of the
crystal-fluid interface is studied by Brownian dynamics computer simulations of
an initially homogeneous sample. Two different types of interface broadenings
are observed: the first occurs during growth and is correlated with the
interface velocity, the second is concomitant with the splitting of the
crystal-fluid interface into the crystal-amorphous and amorphous-liquid
interfaces. The latter width is strongly peaked as a function of the
gravitational driving strength with a huge amplitude relative to its
equilibrium counterpart.

16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom