Brane cosmology: an introduction

@article{Langlois2002BraneCA,
  title={Brane cosmology: an introduction},
  author={David Langlois},
  journal={arXiv: High Energy Physics - Theory},
  year={2002}
}
  • D. Langlois
  • Published 30 September 2002
  • Physics
  • arXiv: High Energy Physics - Theory
These notes give an introductory review on brane cosmology. This subject deals with the cosmological behaviour of a brane-universe, i.e. a three-dimensional space, where ordinary matter is confined, embedded in a higher dimensional spacetime. In the tractable case of a five-dimensional bulk spacetime, the brane (modified) Friedmann equation is discussed in detail, and various other aspects are presented, such as cosmological perturbations, bulk scalar fields and systems with several branes. 

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References

SHOWING 1-10 OF 207 REFERENCES
Brane-World Cosmology, Bulk Scalars and Perturbations
We investigate aspects of cosmology in brane world theories with a bulk scalar field. We concentrate on a recent model motivated from supergravity in singular spaces. After discussing the background
Brane cosmological perturbations
We address the question of cosmological perturbations in the context of brane cosmology, where our Universe is a three-brane where matter is confined, whereas gravity lives in higher-dimensional
Evolution of cosmological perturbations in a brane-universe.
TLDR
In the present Letter, the impact of the existence of extra dimensions on cosmology, in particular, on the evolution of cosmological perturbations is analyzed.
Cosmological Perturbations in Brane-World Theories: Formalism
We develop a gauge-invariant formalism to describe metric perturbations in five-dimensional brane-world theories. In particular, this formalism applies to models originating from heterotic M theory.
Cosmological equations for a thick brane
Generalized Friedmann equations governing the cosmological evolution inside a thick brane embedded in a five-dimensional Anti-de Sitter spacetime are derived. These equations are written in terms of
The cosmological constant problem from a brane-world perspective
We point out several subtleties arising in brane-world scenarios of cosmological constant cancellation. We show that solutions with curvature singularities are inconsistent, unless the contribution
Cosmological brane world solutions with bulk scalar fields
Cosmological brane world solutions are found for five-dimensional bulk spacetimes with a scalar field. A supergravity inspired method for obtaining static solutions is combined with a method for
Gauge invariant cosmological perturbation theory for braneworlds
We derive the gauge invariant perturbation equations for a 5-dimensional bulk spacetime in the presence of a brane. The equations are derived in full generality, without specifying a particular
Brane world cosmology
A simple model of the brane-world cosmology has been proposed, which is characterized by four parameters, namely, the bulk cosmological constant, the spatial curvature of the universe, the radiation
...
...