Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inflation as a White Hole explosion from a 5D vacuum   Using a new kind of 5D Ricci-flat canonical metric, we obtain by a static
foliation an effective 4D Schwarzschild-de Sitter hypersurface. We examine some
particular initial conditions which could be responsible for the inflationary
expansion of the early universe, which could be driven by the explosion of a
White Hole (WH). The zeroth order spectrum outside the WH describes quantum
fluctuations, which for a scale invariant power spectrum, can be expressed in
terms of the cosmological constant, or the square mass of the WH.

12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
1
The categories of this paper are: cs