Gravitational repulsion for planar walls in vacuum spaces.

Details Gravitational repulsion for planar walls in vacuum spaces. Gravitational repulsion for planar walls in vacuum spaces.

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989el.....10..191b&link_type=abstract

Europhys. Lett., Vol. 10, No. 3, p. 191 - 194

Mathematics

Logic

1

Cosmology: De Sitter Universe

Scientific paper

The authors write the junctions conditions for planar walls embedded in vacuum spaces of (anti) de Sitter types, in static circumstances. The authors find the junction relations lead to a constraint between the parameters of the wall (the surface density σ and the surface tension - p) and the cosmological constant Λ. Unlike previous results, even in a static situation the existence of domain walls is allowed. In addition, gravitational repulsion may occur for a certain range of parameters in the anti de Sitter case.

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