Bubble formation in anisotropic cosmologies

Details Bubble formation in anisotropic cosmologies Bubble formation in anisotropic cosmologies

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989nuphb.325..660j&link_type=abstract

Nuclear Physics B, Volume 325, Issue 3, p. 660-686.

Physics

Nuclear Physics

5

Scientific paper

We discuss the decay of the false vacuum in homogeneous cosmologies, both isotropic and anisotropic. If the false vacuum is isotropic, it is expected that the decay rate is dominated by spherically symmetric bubbles. However, if the universe during its past evolution was trapped in an anisotropic false vacuum one expects this anisotropy to be present in the decay products (bubbles) of that vacuum. In this paper we show the existence of two new, anisotropic types of bubble solution of Kantowski-Sachs type for a general double well potential. The first represents the decay of four-dimensional de Sitter space, and the second the decay of the product of the two-sphere and two-dimensional de Sitter space. We also derive qualitative features of the classical space-times emerging after tunneling.

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