Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the quantum fate of singularities in a dark-energy dominated universe   Classical models for dark energy can exhibit a variety of singularities, many
of which occur for scale factors much bigger than the Planck length. We address
here the issue whether some of these singularities, the big freeze and the big
demarrage, can be avoided in quantum cosmology. We use the framework of quantum
geometrodynamics. We restrict our attention to a class of models whose matter
content can be described by a generalized Chaplygin gas and be represented by a
scalar field with an appropriate potential. Employing the DeWitt criterium that
the wave function be zero at the classical singularity, we show that a class of
solutions to the Wheeler-DeWitt equation fulfilling this condition can be
found. These solutions thus avoid the classical singularity. We discuss the
reasons for the remaining ambiguity in fixing the solution.

10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg