Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Towards Matter Inflation in Heterotic String Theory   Recently, a class of inflation models in supergravity with gauge non-singlet
matter fields as the inflaton has been proposed. It is based on a `tribrid'
structure in the superpotential and on a Heisenberg symmetry for solving the
eta-problem. We suggest that a generalization of this model class may be
suitable for realising inflation in heterotic orbifold compactifications, where
the Heisenberg symmetry is a property of the tree-level K"ahler potential of
untwisted matter fields. We discuss moduli stabilization in this setup and
propose a mechanism to stabilize the modulus associated to the inflaton, which
respects the symmetry in the large radius limit. Inflation ends via a waterfall
phase transition, as in hybrid inflation. We give conditions which have to be
satisfied for realising inflation along these lines in the matter sector of
heterotic orbifolds.

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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: cs
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The categories of this paper are: acc-phys
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: atom-ph
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The categories of this paper are: solv-int
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: nlin