Generation of dark radiation in the bulk inflaton model
arXiv:gr-qc/0301010 · doi:10.1103/PhysRevD.67.104007
Abstract
We investigate the dynamics of a bulk scalar field with various decay channels in the Randall-Sundrum infinite braneworld scenario. A bulk scalar field in this scenario has a quasi-localized mode which dominates the late-time behavior near the brane. As for this mode, an interesting point is the presence of dissipation caused by the escape of the energy in the direction away from the brane, even if the bulk scalar field does not have the interaction with the other bulk fields in the bulk and fields on the brane. We can interpret that this lost energy is transfered to the dark radiation. We show that such an effective 4-dimensional description for a bulk scalar field is valid including the various processes of energy dissipation.
7 pages, no figures, references added, presentation improved, final version to be published in PRD
References in corpus (3)
Cited by in corpus (22)
- Dynamics of dark energy
- Brane-World Gravity
- Brane-world gravity
- Bulk gravitons from a cosmological brane
- Massive scalar states localized on a de Sitter brane
- Low Energy Effective Action for Dilatonic Braneworld --A Formalism for Inflationary Braneworld--
- Primordial fluctuations in bulk inflaton model
- Disappearing Dark Matter in Brane World Cosmology: New Limits on Noncompact Extra Dimensions
- On Continuum Effective Field Theories, Gravity and Holography
- Exactly solvable model for cosmological perturbations in dilatonic brane worlds
- Cosmological Dark Matter from a Bulk Black Hole
- Quantum-mechanical generation of gravitational waves in braneworld
- Local conservation law and dark radiation in cosmological braneworld
- Holography of Linear Dilaton Spacetimes from the Bottom Up
- Bulk gravitational field and dark radiation on the brane in dilatonic brane world
- Creation of a brane world with a bulk scalar field
- Torsion, Dirac Field, Dark Matter and Dark Radiation
- Holographic Fluids from 5D Dilaton Gravity
- Graviton emission from the brane in the bulk in a model with extra dimension
- Energy-momentum tensor of bouncing gravitons
- LHC signatures of vector boson emission from brane to bulk
- Quasi-homologous spherically symmetric branes and their symmetry breaking