Dynamics of Generalized Assisted Inflation
arXiv:gr-qc/0602077 · doi:10.1088/0264-9381/23/14/003
Abstract
We study the dynamics of multiple scalar fields and a barotropic fluid in an FLRW-universe. The scalar potential is a sum of exponentials. All critical points are constructed and these include scaling and de Sitter solutions. A stability analysis of the critical points is performed for generalized assisted inflation, which is an extension of assisted inflation where the fields mutually interact. Effects in generalized assisted inflation which differ from assisted inflation are emphasized. One such a difference is that an (inflationary) attractor can exist if some of the exponential terms in the potential are negative.
27 pages
References in corpus (20)
- Cosmology and the Fate of Dilatation Symmetry
- Exponential potentials and cosmological scaling solutions
- Quintessence arising from exponential potentials
- Assisted inflation
- Assisted inflation via tachyon condensation
- Interactions in Scalar Field Cosmology
- Generalized Assisted Inflation
- Cosmology with positive and negative exponential potentials
- M-Theory Inflation from Multi M5-Brane Dynamics
- Dynamics of Assisted Inflation
- The Dynamics of Multi-Scalar Field Cosmological Models and Assisted Inflation
- Instanton Cosmology and Domain Walls from M-theory and String Theory
- Accelerating Cosmologies and Inflation from M/Superstring Theories
- Scaling Solutions in Robertson-Walker Spacetimes
- Scalar Cosmology with Multi-exponential Potentials
- Dynamics of assisted quintessence
- Transient Quintessence from Group Manifold Reductions or how all roads lead to Rome
- Moduli Stabilization in Brane Gas Cosmology with Superpotentials
- Generalized Compactification and Assisted Dynamics of Multi--Scalar Field Cosmologies
- Heteroclinic orbit and tracking attractor in cosmological model with a double exponential potential
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- A note on obstinate tachyons in classical dS solutions
- Dynamics of a scalar field in Robertson-Walker spacetimes
- Unified description of the dynamics of quintessential scalar fields
- Some remarks about non-minimally coupled scalar field models
- IR Inflation from Multiple Branes
- Assisted coupled quintessence
- Assisted dark energy
- DBI N-flation
- Intermediate accelerated solutions as generic late-time attractors in a modified Jordan-Brans-Dicke theory
- Stability of multi-field cosmological solutions
- Scaling cosmologies, geodesic motion and pseudo-susy
- Cosmology of Axions and Moduli: A Dynamical Systems Approach
- Observational constraints on assisted k-inflation
- Scaling Cosmologies of N=8 Gauged Supergravity
- Einstein Branes
- Tilted Ekpyrosis
- Cosmology with Twisted Tori
- Stability of multi-field cosmological solutions in the presence of a fluid
- Scaling Cosmologies from Duality Twisted Compactifications
- Time Dependent String Compactification: Towards Bouncing Cosmology