Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Inflation: Theory and Observations   Cosmic inflation provides a window to the highest energy densities accessible
in nature, far beyond those achievable in any realistic terrestrial experiment.
Theoretical insights into the inflationary era and its observational probes may
therefore shed unique light on the physical laws underlying our universe. This
white paper describes our current theoretical understanding of the inflationary
era, with a focus on the statistical properties of primordial fluctuations. In
particular, we survey observational targets for three important signatures of
inflation: primordial gravitational waves, primordial non-Gaussianity and
primordial features. With the requisite advancements in analysis techniques,
the tremendous increase in the raw sensitivities of upcoming and planned
surveys will translate to leaps in our understanding of the inflationary
paradigm and could open new frontiers for cosmology and particle physics. The
combination of future theoretical and observational developments therefore
offer the potential for a dramatic discovery about the nature of cosmic
acceleration in the very early universe and physics on the smallest scales.

15
The categories of this paper are: nucl-ex
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph