Stability of the 3-form field during inflation
arXiv:1202.0896 · doi:10.1103/PhysRevD.85.123545
Abstract
We consider the minimally coupled 3-form field which has been considered as a candidate to realize inflation. We have studied the conditions to avoid ghosts and Laplacian instabilities and found that some classes of potentials, e.g. the Mexican-hat one, will in general be unstable. We then propose other classes of potentials which are instead free from any instability, drive a long-enough slow-roll regime followed by an oscillatory epoch, and as a consequence, can provide successful inflation. Finally, we also provide stable potentials which lead to a small enough propagation speed for the scalar perturbations, giving a possibility for these models to produce non-Gaussianities.
18 pages, 12 figures, add new informations in V2, correct some typos in V3
References in corpus (17)
- Inflationary Universe with Anisotropic Hair
- Vector Inflation
- Effective gravitational couplings for cosmological perturbations in the most general scalar-tensor theories with second-order field equations
- Instability of anisotropic cosmological solutions supported by vector fields
- Inflationary non-Gaussianities in the most general second-order scalar-tensor theories
- Inflation and primordial non-Gaussianities of "generalized Galileons"
- Anisotropic Inflation from Vector Impurity
- Primordial non-Gaussianities in general modified gravitational models of inflation
- Inflation from N-Forms and its stability
- P-nflation: generating cosmic Inflation with p-forms
- Anisotropic non-Gaussianity from vector field perturbations
- Cosmological perturbations from vector inflation
- Chaotic inflation in modified gravitational theories
- Gravitational waves in vector inflation
- WMAP-normalized Inflationary Model Predictions and the Search for Primordial Gravitational Waves with Direct Detection Experiments
- Dynamics of three-form dark energy with dark matter couplings
- Three-magnetic fields
Cited by in corpus (26)
- Gauge Fields and Inflation
- The anisotropic power spectrum and bispectrum in the f(phi) F^2 mechanism
- DBI Galileon inflation in background SUGRA
- Coupled three-form dark energy
- Interacting 3-form dark energy models: distinguishing interactions and avoiding the Little Sibling of the Big Rip
- Wormhole geometries supported by three-form fields
- Cosmic infinity: A dynamical system approach
- Traversable Wormhole in Einstein 3-Form Theory With Self-Interacting Potential
- Reheating in 3-form inflation
- Inflation in a two 3-form fields scenario
- Three-form inflation and non-Gaussianity
- Regular Black Hole Interior Spacetime Supported by Three-Form Field
- 3-form inflation in Randall-Sundrum II
- Quantum behavior of the "Little Sibling" of the Big Rip induced by a three-form field
- Disformal vectors and anisotropies on a warped brane
- Non-Gaussianity in multiple three-form field inflation
- Perfect fluid in Lagrangian formulation due to generalized three-form field
- Perturbations and non-Gaussianities in three-form inflationary magnetogenesis
- Static spherically symmetric three-form stars
- Black hole and naked singularity geometries supported by three-form fields
- Doubly-boosted vector cosmologies from disformal metrics
- The anisotropy of a three- and a one-form
- Gravitational lensing by traversable wormholes supported by three-form fields
- Scalar and vector modes in inflation with antisymmetric tensor field
- Generalized Three-Form Field
- Hamiltonian formalism and constraint analysis of three-form matter models coupled with general relativity