# Is Our Universe Brany

@article{Langlois2005IsOU, title={Is Our Universe Brany}, author={David Langlois}, journal={Progress of Theoretical Physics Supplement}, year={2005}, volume={163}, pages={258-275} }

In brane-worlds, our universe is assumed to be a submanifold, or brane, embedded in a higher-dimensional bulk spacetime. Focusing on scenarios with a curved five-dimensional bulk spacetime, I discuss their gravitational and cosmological properties.

## 29 Citations

### Brane-world cosmology and varying G

- Physics
- 2010

We consider a brane-world cosmological model coupled to a bulk scalar field. Since the brane tension turns out to be proportional to Newton's coupling G, in such a model a time variation of G…

### Dark energy from gravitational collapse

- Physics
- 2006

We discuss the status of both cosmological and black hole type singularities in the framework of the brane-world model of gravity. We point out that the Big Bang is not properly understood yet. We…

### Brane world in non-Riemannian geometry

- Mathematics
- 2011

We carefully investigate the modified Einstein's field equation in a 4-dimensional (3-brane) arbitrary manifold embedded in a 5-dimensional non-Riemannian bulk spacetime with a noncompact extra…

### Curvaton dynamics in brane-worlds

- Physics
- 2006

We study the curvaton dynamics in brane-world cosmologies. Assuming that the inflaton field survives without decay after the end of inflation, we apply the curvaton reheating mechanism to the…

### Braneworld gravitational collapse from a radiative bulk

- Physics
- 2006

We study the fate of a collapsing star on the brane in a generalized braneworld gravity with bulk matter. Specifically, we investigate the possibility of having a static exterior for a collapsing…

### Irradiated asymmetric Friedmann branes

- Physics
- 2006

We consider a Friedmann brane moving in a bulk impregnated with radiation. The set-up is strongly asymmetric, with only one black hole in the bulk. The radiation emitted by this left bulk black hole…

### Induced cosmological constant and other features of asymmetric brane embedding

- Physics
- 2009

We investigate the cosmological properties of an `induced gravity' brane scenario in the absence of mirror symmetry with respect to the brane. We find that brane evolution can proceed along one of…

### Induced cosmological constant and other features of asymmetric brane embedding

- Physics
- 2009

We investigate the cosmological properties of an `induced gravity' brane scenario in the absence of mirror symmetry with respect to the brane. We find that brane evolution can proceed along one of…

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Cosmological consequences of the brane world scenario are reviewed in a pedagogical manner. According to the brane world idea, the standard model particles are confined on a hypersurface (a so-called…

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- Physics
- 2004

Recent developments in the physics of extra dimensions have opened up new avenues to test such theories. We review cosmological aspects of brane world scenarios such as the Randall–Sundrum brane…

### Stochastic Gravitational Wave Background in Brane World Cosmology

- Physics
- 2004

We investigate the cosmological evolution of gravitational waves in Friedman-Robertson-Walker brane world models embedded in a five dimensional anti de-Sitter spacetime. To predict the spectrum of…

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- Physics
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An overview of some cosmological aspects of string theory is presented. Recent developments are emphasized, especially the attempts to derive inflation or alternatives to inflation from the dynamics…