Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Can the Simplest Two-Field Model of Open Inflation Survive?   We investigate the quantum fluctuations of an inflaton field in a two-field
model of one-bubble open inflation. One of the inflatons is assumed to be
responsible for the first false vacuum stage of inflation and the other is
assumed to be responsible for the second slow-roll stage of inflation. The mass
of the second inflaton is assumed to be negligible throughout the whole era of
inflation. We find the super-curvature fluctuations are enhanced by the factor
given by the ratio of the Hubble constants at false vacuum and true vacuum.
This gives a strong constraint on a class of open inflation models. In
particular, this implies the simplest two-field model proposed by Linde and
Mezhlumian is in trouble.

12
The categories of this paper are: nucl-th
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
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The categories of this paper are: comp-gas
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The categories of this paper are: dg-ga
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-th
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The categories of this paper are: solv-int