Gauss-Bonnet braneworld redux: A novel scenario for the bouncing universe

Abstract

We propose a new scenario for the bouncing universe in a simple five-dimensional braneworld model in the framework of Einstein-Gauss-Bonnet gravity, which works even with ordinary matter on the brane. In this scenario, the so-called branch singularity located at a finite physical radius in the bulk spacetime plays an essential role. We show that a three-brane moving in the bulk may reach and pass through it in spite of the fact that it is a curvature singularity. The bulk spacetime is extended beyond the branch singularity in the C^0 sense and then the branch singularity is identified as a massive thin shell. From the bulk point of view, this process is the collision of the three-brane with the shell of branch singularity. From the point of view on the brane, this process is a sudden transition from the collapsing phase to the expanding phase of the universe. The present result opens a completely new possibility to achieve the bouncing brane universe as a higher-curvature effect.

34 pages, 3 figures, 2 tables; v2, sections rearranged, typos corrected; v3, final version to appear in Physical Review D

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Cited by in corpus (15)

• Generalized teleparallel cosmology and initial singularity crossing
• Quantum cosmology and late-time singularities
• Weyl-Weyl Correlator in de Donder Gauge on de Sitter
• The paradox of soft singularity crossing and its resolution by distributional cosmological quantitities
• Tradeoff between Smoother and Sooner "Little Rip"
• Impact of compactlike and asymmetric configurations of thick branes on the scalar-tensor representation of $f\left(R,T\right)$ gravity
• Study of field fluctuations and their localization in a thick braneworld generated by gravity non-minimally coupled to a scalar field with the Gauss-Bonnet term
• Removing Ostrogradski ghost from degenerate gravity theories
• Weyl Anomaly and Initial Singularity Crossing
• New models of d-dimensional black holes without inner horizon and with an integrable singularity
• Future soft singularities, Born-Infeld-like fields and particles
• Vacuum thin shells in Einstein-Gauss-Bonnet brane-world cosmology
• Effectively four-dimensional spacetimes emerging from d=5 Einstein-Gauss-Bonnet Gravity
• Lovelock gravity, black holes and holography
• Gauss-Bonnet Gravity and Spacetime Singularities