Poly-instanton axion inflation
arXiv:1705.04088 · doi:10.1103/PhysRevD.96.026007
Abstract
We investigate the axion inflation model derived by poly-instanton effects in type II superstring theories. Poly-instanton effects are instanton effects corrected by another instanton and it can generate the modulus-axion potential with the double exponential function. Although the axion has a period of small value, this potential can have a flat region because its derivatives are exponentially suppressed by non-perturbative effects. From the view point of the cosmic inflation, such potential is interesting. In this paper, we numerically study the possibilities for realizing the cosmic inflation. We also study their spectral index and other cosmological observables, numerically.
13 pages, 2 figures
References in corpus (36)
- de Sitter Vacua in String Theory
- Hierarchies from Fluxes in String Compactifications
- Planck 2013 results. XXII. Constraints on inflation
- Monodromy in the CMB: Gravity Waves and String Inflation
- Gravity Waves and Linear Inflation from Axion Monodromy
- What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
- Completing Natural Inflation
- A Natural Framework for Chaotic Inflation
- D-brane Instantons in Type II String Theory
- De Sitter Vacua from Matter Superpotentials
- Moduli stabilization and uplifting with dynamically generated F-terms
- Moduli stabilization, F-term uplifting and soft supersymmetry breaking terms
- O'KKLT
- Computation of D-brane instanton induced superpotential couplings - Majorana masses from string theory
- Multi-Natural Inflation
- Anisotropic Modulus Stabilisation: Strings at LHC Scales with Micron-sized Extra Dimensions
- Poly-instanton Inflation
- More about F-term uplifting
- Multi-Natural Inflation in Supergravity
- Power Towers of String Instantons for N=1 Vacua
- Axion monodromy inflation with multi-natural modulations
- A Note on Poly-Instanton Effects in Type IIB Orientifolds on Calabi-Yau Threefolds
- New potentials for string axion inflation
- Natural inflation with and without modulations in type IIB string theory
- Moduli Stabilization and Inflationary Cosmology with Poly-Instantons in Type IIB Orientifolds
- Subleading Effects and the Field Range in Axion Inflation
- Modular invariant inflation
- Inflation from periodic extra dimensions
- Towards natural inflation from weakly coupled heterotic string theory
- Axion monodromy inflation with sinusoidal corrections
- Axion Inflation and Affleck-Dine Baryogenesis
- Cosmological observables in multi-field inflation with a non-flat field space
- On Non-Gaussianities in Two-Field Poly-Instanton Inflation
- Small field axion inflation with sub-Planckian decay constant
- Constraints on small-field axion inflation
- Supersymmetry preserving and breaking degenerate vacua, and radiative moduli stabilization
Cited by in corpus (6)
- On the slope of curvature power spectrum in non-attractor inflation
- An analytic approach to non-slow-roll inflation
- A Systematic Approach to Kähler Moduli Stabilisation
- Tensor Spectra Templates for Axion-Gauge Fields Dynamics during Inflation
- Evidence for Inflation in an Axion Landscape
- Generic no-scale inflation inspired from string theory compactifications