Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective Field Theory Approach to Cosmological Initial Conditions:
  Self-Consistency Bounds and Non-Gaussianities   Effective Field Theory (EFT) is an efficient method for parametrizing unknown
high energy physics effects on low energy data. When applied to time-dependent
backgrounds, EFT must be supplemented with initial conditions. In these
proceedings, I briefly describe such approach, especially in the case of
inflationary, almost-de Sitter backgrounds. I present certain self-consistency
constraints that bound the size of possible deviations of the initial state
from the standard thermal vacuum. I also estimate the maximum size of
non-Gaussianities due to a non-thermal initial state which is compatible with
all bounds. These non-Gaussianities can be much larger than those due to
nonlinearities in the action describing single-scalar slow roll inflation

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The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
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The categories of this paper are: hep-lat
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci