Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radion Induced Brane Preheating   When the interbrane separation in compact Randall-Sundrum models is
stabilized via the Goldberger-Wise mechanism, a potential is generated for the
four dimensional field that encodes this geometric information, the so-called
radion. Due to its origin as a part of the full five dimensional metric, the
radion couples directly to particles on both branes. We exhibit the exponential
growth in the number of brane particles due to parametric amplification from
radion oscillations and discuss some of the consequences of this process for
brane cosmology.

29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
30
The categories of this paper are: q-alg