Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Non-relativistic Matrix Inflation   We reconsider a string theoretic inflationary model, where inflation is
driven by $n$ multiple coincident $D3$-branes in the finite $n$ limit. We show
that the finite $n$ action can be continued to the limit of large $n$, where it
converges to the action for a wrapped $D5$-brane with $n$ units of U(1) flux.
This provides an important consistency check of the scenario and allows for
more control over certain back-reaction effects. We determine the most general
form of the action for a specific sub-class of models and examine the
non-relativistic limits of the theory where the branes move at speeds much less
than the speed of light. The non-Abelian nature of the world-volume theory
implies that the inflaton field is matrix valued and this results in
modifications to the slow-roll parameters and Hubble-flow equations. A specific
small field model of inflation is investigated where the branes move out of an
AdS throat, and observational constraints are employed to place bounds on the
background fluxes.

25
The categories of this paper are: patt-sol
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
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The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: acc-phys
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The categories of this paper are: funct-an