Scalar Perturbations Through Cycles
arXiv:1201.1371 · doi:10.1103/PhysRevD.86.083510
Abstract
We analytically and numerically investigate the evolutions of the scalar perturbations through the cycles with nonsingular bounce. It is found that the amplitude of the curvature perturbation on large scale will be amplified cycle by cycle, and the isocurvature perturbations also obtain an amplification, but the rate of its amplification is slower than that of curvature perturbation, unless its coupling to the metric perturbation is not negligible.
7 pages, 10 figures
References in corpus (15)
- G-Bounce
- Bouncing Universe with Quintom Matter
- Towards a Resolution of the Cosmological Singularity in Non-local Higher Derivative Theories of Gravity
- Bouncing Galileon Cosmologies
- Non-singular cosmology in a model of non-relativistic gravity
- Oscillating universe with quintom matter
- Inflation with a Negative Cosmological Constant
- The Ups and Downs of Cyclic Universes
- Cosmic Perturbations Through the Cyclic Ages
- Processing of Cosmological Perturbations in a Cyclic Cosmology
- Can black holes be torn up by phantom dark energy in cyclic cosmology?
- Cyclic Inflation
- Amplification of Curvature Perturbations in Cyclic Cosmology
- Can the Big Bang Singularity be avoided by a single scalar field?
- Bouncing Cosmologies
Cited by in corpus (7)
- Multi-scale gravity and cosmology
- Periodic Cosmological Evolutions of Equation of State for Dark Energy
- Reconstruction of the equation of state for the cyclic universes in homogeneous and isotropic cosmology
- Some Models of Cyclic and Knot Universes
- Isochronous Cosmologies
- Isochronous Spacetimes
- Isochronous solutions of Einstein's equations and their Newtonian limit