1996/04/14 by Yoonbai Kim, Kei-ichi Maeda, Nobuyuki Sakai · 19 citations
Physics and Astronomy · Social Sciences · #Action (physics) #Black Holes and Theoretical Physics #Bubble #Cosmology and Gravitation Theories #Euclidean geometry #False vacuum #International Science and Diplomacy #Magnetic monopole #Scalar (mathematics) #Scalar field #astro-ph #gr-qc #hep-th
paper · pdf · doi:10.1016/s0550-3213(96)90151-0
published in Nuclear Physics B 481(1-2), 453-476 (Elsevier BV) · 25 pages, latex
arxiv created 1996/04/14 · openalex publication_date 1996/12/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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.