# Brane cosmology with an anisotropic bulk

@inproceedings{AFabbri2004BraneCW, title={Brane cosmology with an anisotropic bulk}, author={A.Fabbri and D.Langlois and D.A.Steer and R.Zegers}, year={2004} }

In the context of brane cosmology, a scenario where our universe is a 3 + 1-dimensional surface (the “brane”) embedded in a ﬁve-dimensional spacetime (the “bulk”), we study geometries for which the brane is anisotropic — more speciﬁ-cally Bianchi I — though still homogeneous. We ﬁrst obtain explicit vacuum bulk solutions with anisotropic three-dimensional spatial slices. The bulk is assumed to be empty but endowed with a negative cosmological constant. We then embed Z 2 symmetric branes in the…

## One Citation

## References

SHOWING 1-10 OF 26 REFERENCES

### General brane cosmologies and their global spacetime structure

- Physics
- 2000

Starting from a completely general standpoint, we find the most general brane-universe solutions for a 3-brane in a five-dimensional spacetime. The brane can border regions of spacetime with or…

### Braneworld cosmological models with anisotropy

- Physics
- 2003

Institute of Cosmology and Gravitation, University of Portsmouth, Portsmouth PO1 2EG, UK(Dated: February 1, 2008)For a cosmological Randall-Sundrum braneworld with anisotropy, i.e., of Bianchi type,…

### Asymptotic behavior of homogeneous cosmological models in the presence of a positive cosmological constant

- Mathematics, Physics
- 1983

We examine the late-time behavior of intially expanding homogeneous cosmological models satisfying Einstein's equation with a positive cosmological constant $\ensuremath{\Lambda}$. It is shown that…

### Isotropy and stability of the brane

- Mathematics
- 2001

We reexamine Wald’s no-hair theorem for global anisotropy in the brane world scenarios. We derive a set of sufficient conditions which must be satisfied bythe brane matter and bulk metric so that a…

### ANISOTROPIC BRANE COSMOLOGIES WITH EXPONENTIAL POTENTIALS

- Mathematics
- 2004

We study Bianchi I type brane cosmologies with scalar matter self-interacting through combinations of exponential potentials. Such models correspond in some cases to inflationary universes. We…

### Anisotropy and inflation in Bianchi I braneworlds

- Physics
- 2004

After a more general assumption on the influence of the bulk on the brane, we extend some conclusions by Maartens et al (2001 Phys. Rev. D 63 063509) and Santos et al (2001 Phys. Rev. D 64 063506) on…

### Magnetic brane-worlds

- Physics
- 2002

We investigate brane-worlds with a pure magnetic field and a perfect fluid. We extend earlier work to brane-worlds and find new properties of the Bianchi type I brane-world. We find new asymptotic…

### An Almost Isotropic Cosmic Microwave Temperature Does Not Imply an Almost Isotropic Universe

- Physics
- 1999

In this Letter we will show that, contrary to what is widely believed, an almost isotropic cosmic microwave background (CMB) temperature does not imply that the universe is "close to a…