Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gauss-Bonnet braneworld redux: A novel scenario for the bouncing
  universe   We propose a new scenario for the bouncing universe in a simple
five-dimensional braneworld model in the framework of Einstein-Gauss-Bonnet
gravity, which works even with ordinary matter on the brane. In this scenario,
the so-called branch singularity located at a finite physical radius in the
bulk spacetime plays an essential role. We show that a three-brane moving in
the bulk may reach and pass through it in spite of the fact that it is a
curvature singularity. The bulk spacetime is extended beyond the branch
singularity in the C^0 sense and then the branch singularity is identified as a
massive thin shell. From the bulk point of view, this process is the collision
of the three-brane with the shell of branch singularity. From the point of view
on the brane, this process is a sudden transition from the collapsing phase to
the expanding phase of the universe. The present result opens a completely new
possibility to achieve the bouncing brane universe as a higher-curvature
effect.

8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg