Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quantization of the massless minimally coupled scalar field and the
  dS/CFT correspondence   We consider the quantization of the massless minimally coupled scalar field
in de Sitter spacetime. The no-boundary Euclidean prescription naturally picks
out the de Sitter invariant vacuum state of Kirsten and Garriga. We extend
Strominger's dS/CFT correspondence to this case which allows us to interpret
the massless field in terms of a Euclidean CFT. The extension is non-trivial
and requires careful treatment of the zero mode. Since the graviton is
massless, this work may also be considered a step towards a theory of gravity
in de Sitter space.

17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
12
The categories of this paper are: nucl-th
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga