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General Relativity and Gravitation

, Volume 26, Issue 11, pp 1117–1129 | Cite as

Gravitational repulsion of spherical domain walls

  • Andro Barnaveli
  • Merab Gogberashvili
Article

Abstract

We consider the disagreements in gravitational properties of planar and spherical domain walls (bubbles). We argue that if the spherical domain walls are described by the same equation of state as the planar walls are, then they also exhibit gravitational repulsion just as the planar walls are assumed to do. In the thin-wall approximation we show the existence of the solution of Einstein equations with negative gravitational mass of bubbles and the reversed direction of time flow on the shell. The equilibrium radius and critical mass of such objects are found for realistic models.

Keywords

Reversed Direction Domain Wall Time Flow Differential Geometry Realistic Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1994

Authors and Affiliations

  • Andro Barnaveli
    • 1
  • Merab Gogberashvili
    • 1
  1. 1.Institute of Physics of the Georgian Academy of SciencesTbilisiRepublic of Georgia

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