Bubble dynamics in the expanding universe

K. Maeda*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)


Using the Gauss-Codazzi equations, the behavior of a singular hypersurface, which divides the universe into two Friedmann-Robertson-Walker space-time regions V+ and V-, is investigated. The equation of motion for a spherical bubble in the expanding universe is presented and the physical meaning of the equation is clarified. The equations of state for fluids in V± and on the boundary shell, which should be determined by microscopic physics, are arbitrary in the present geometrical approach. The derived equations are quite similar to those for a shell in a vacuum and can be applied to the case that one of V± or both are Schwarzschild-de Sitter space-time too.

Original languageEnglish
Pages (from-to)931-951
Number of pages21
JournalGeneral Relativity and Gravitation
Issue number9
Publication statusPublished - 1986 Sept 1
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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