Near-horizon solution for Dvali-Gabadadze-Porrati perturbations
Journal Article
·
· Physical Review. D, Particles Fields
- Kavli Institute for Cosmological Physics, Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)
We develop a scaling ansatz for the master equation in Dvali, Gabadadze, Porrati cosmologies, which allows us to solve the equations of motion for perturbations off the brane during periods when the on-brane evolution is scale free. This allows us to understand the behavior of the gravitational potentials outside the horizon at high redshifts and close to the horizon today. We confirm that the results of Koyama and Maartens are valid at scales relevant for observations such as galaxy-ISW correlations. At larger scales, there is an additional suppression of the potential which reduces the growth rate even further and would strengthen the integrated Sachs-Wolf effect.
- OSTI ID:
- 21020148
- Journal Information:
- Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 6 Vol. 75; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dvali-Gabadadze-Porrati cosmology in Bianchi I brane
Strong coupling effect and auxiliary fields in the Dvali-Gabadadze-Porrati model
Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
Journal Article
·
Fri Aug 15 00:00:00 EDT 2008
· Physical Review. D, Particles Fields
·
OSTI ID:21250481
Strong coupling effect and auxiliary fields in the Dvali-Gabadadze-Porrati model
Journal Article
·
Sat Oct 15 00:00:00 EDT 2005
· Physical Review. D, Particles Fields
·
OSTI ID:20713731
Cascading Gravity: Extending the Dvali-Gabadadze-Porrati Model to Higher Dimension
Journal Article
·
Fri Jun 27 00:00:00 EDT 2008
· Physical Review Letters
·
OSTI ID:21134066