Monopole bubble in early universe

Yoonbai Kim, Kei Ichi Maeda, Nobuyuki Sakai

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

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
Volume481
Issue number1-2
Publication statusPublished - 1996 Jan 1

Keywords

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

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Kim, Y., Maeda, K. I., & Sakai, N. (1996). Monopole bubble in early universe. Nuclear Physics B, 481(1-2), 453-476.