De Sitter and double irregular domain walls

Details De Sitter and double irregular domain walls De Sitter and double irregular domain walls

2005-04-18

arxiv.org/abs/gr-qc/0504080v4

Gen.Rel.Grav. 38 (2006) 845-855

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 4 figures, added references, some equations corrected

Scientific paper

10.1007/s10714-006-0297-y

A new method to obtain thick domain wall solutions to the coupled Einstein scalar field system is presented. The procedure allows the construction of irregular walls from well known ones, such that the spacetime associated to them are physically different. As consequence of the approach, we obtain two irregular geometries corresponding to thick domain walls with $dS$ expansion and topological double kink embedded in $AdS$ spacetime. In particular, the double brane can be derived from a fake superpotential.

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