Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extrinsic curvature effects in brane-world scenarios   We consider models of bosons on curved 3+1 dimensional space-time embedded in
a higher dimensional flat ambient space. We propose to derive (rather than
postulate) equations of motions by assuming that a standard Klein-Gordon field
on ambient space is restricted to space-time by a strong confining potential.
This leads to a modified Klein-Gordon equation on space-time which includes, in
addition to the standard terms, a term with a so-called induced potential which
depends on intrinsic- and extrinsic curvature of the embedded space-time but
not on the details of the confining potential. We compute this induced
potential for natural, simple embeddings of Schwarzschild- and Robertson-Walker
space-times. We also discuss possible observable implications of our results
and, in particular, propose and study an extension of a standard model of
cosmological inflation taking into account extrinsic curvature effects. We show
that the modified model allows for a solution where the scaling function
vanishes like a power law with exponent 0.6830.. at some initial time.

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The categories of this paper are: atom-ph
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
4
The categories of this paper are: cond-mat
15
The categories of this paper are: nucl-ex
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph