Monopole bubble in early universe

Yoonbai Kim*, Kei Ichi Maeda, Nobuyuki Sakai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)


The nucleation and evolution of bubbles are investigated in the model of an 0(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 the 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.

Original languageEnglish
Pages (from-to)453-476
Number of pages24
JournalNuclear Physics B
Issue number1-2
Publication statusPublished - 1996
Externally publishedYes


  • Cosmological phase transition
  • Finite-temperature field theory
  • General relativity

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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