Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gravitational waves from global cosmic strings in quintessential
  inflation   The combination of non-minimal couplings to gravity with the
post-inflationary kinetic-dominated era typically appearing in quintessential
inflation scenarios may lead to the spontaneous symmetry breaking of internal
symmetries and its eventual restoration at the onset of radiation domination.
On general grounds, the breaking of these symmetries leads to the generation of
short-lived topological defects that tend to produce gravitational waves until
the symmetry is restored. We study here the background of gravitational waves
generated by a global cosmic string network following the dynamical symmetry
breaking and restoration of a $U(1)$ symmetry. The resulting power spectrum
depends on the duration of the heating process and it is potentially
detectable, providing a test on the existence of non-minimal couplings to
gravity and the characteristic energy scale of post-inflationary physics.

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The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an