Perturbations in Matter Bounce with Non-minimal Coupling
arXiv:1007.2571 · doi:10.1088/1475-7516/2010/11/012
Abstract
In this paper, we investigate the perturbations in matter bounce induced from Lee-Wick lagrangian with the involvement of non-minimal coupling to the Einstein Gravity. We find that this extra non-minimal coupling term can cause a red-tilt on the primordial metric perturbation at extremely large scales. It can also lead to large enhancement of reheating of the normal field particles compared to the usual minimal coupling models.
15 pages, 4 figures
References in corpus (14)
- The Lee-Wick Standard Model
- Non-minimally coupled canonical, phantom and quintom models of holographic dark energy
- Non-singular cosmology in a model of non-relativistic gravity
- On Perturbations of Quintom Bounce
- Non-Gaussianity in a Matter Bounce
- Evolution of Metric Perturbations in Quintom Bounce model
- Generalized Brans-Dicke theories
- Oscillating Universe in Horava-Lifshitz Gravity
- Spectra of primordial fluctuations in two-perfect-fluid regular bounces
- Theoretical Aspects of Quintom Models
- Generalised perturbation equations in bouncing cosmologies
- Can the Big Bang Singularity be avoided by a single scalar field?
- Bouncing Universe with Non-minimally Coupled Quintom Matter
- Unitarity, Lorentz invariance and causality in Lee-Wick theories: An asymptotically safe completion of QED