Domain-Walls in Einstein-Gauss-Bonnet Bulk

Details Domain-Walls in Einstein-Gauss-Bonnet Bulk Domain-Walls in Einstein-Gauss-Bonnet Bulk

2010-08-16

arxiv.org/abs/1008.2671v2

Phys.Rev.D82:087502,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages and 4 figures, to appear in PRD

Scientific paper

10.1103/PhysRevD.82.087502

We investigate the dynamics of a d-dimensional domain wall (DW) in a d+1-dimensional Einstein-Gauss-Bonnet (EGB) bulk. Exact effective potential induced by the Gauss-Bonnet (GB) term on the wall is derived. In the absence of the GB term we recover the familiar gravitational and anti-harmonic oscillator potentials. Inclusion of the GB correction gives rise to a minimum radius of bounce for the Friedmann-Robertson-Walker (FRW) universe expanding with a negative pressure on the DW.

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