Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correlations between black holes formed in cosmic string breaking   An analysis of cosmic string breaking with the formation of black holes
attached to the ends reveals a remarkable feature: the black holes can be
correlated or uncorrelated. We find that, as a consequence, the
number-of-states enhancement factor in the action governing the formation of
uncorrelated black holes is twice the one for a correlated pair. We argue that
when an uncorrelated pair forms at the ends of the string, the physics involved
is more analogous to thermal nucleation than to particle-antiparticle creation.
Also, we analyze the process of intercommuting strings induced by black hole
annihilation and merging. Finally, we discuss the consequences for grand
unified strings. The process whereby uncorrelated black holes are formed yields
a rate which significantly improves over those previously considered, but still
not enough to modify string cosmology.

20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
0
The categories of this paper are: hep-ph
6
The categories of this paper are: astro-ph
2
The categories of this paper are: math