Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measuring the duration of inflation with the curvaton   Simple models of single-field inflation in the very early universe can
generate the observed amplitude and scale dependence of the primordial density
perturbation, but models with multiple fields can provide an equally good fit
to current data. We show how future observations will be able to distinguish
between currently favoured models. If a curvaton field generates the primordial
perturbations after inflation, we show how the total duration of inflation can
be measured.

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The categories of this paper are: solv-int
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The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio