Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Monopole-Bubble in Early Universe   The nucleation and evolution of bubbles are investigated in the model of an
$O(3)$-symmetric scalar field coupled to gravity in the high temperature limit.
It is shown that, in addition to the well-known bubble of which the inside
region is true vacuum, there exists another decay channel at high temperature
which is described by a new solution such that a false vacuum region like a
global monopole remains at the center of a bubble. The value of the Euclidean
action of this bubble is higher than that of the ordinary bubble; however, the
production rate of it can be considerable for a certain range of scalar
potentials.

4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
23
The categories of this paper are: solv-int
18
The categories of this paper are: econ
2
The categories of this paper are: math
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn