Aligned Natural Inflation in String Theory
arXiv:1404.7852 · doi:10.1103/PhysRevD.90.023501
Abstract
We propose a scenario for realizing super-Planckian axion decay constants in Calabi-Yau orientifolds of type IIB string theory, leading to large-field inflation. Our construction is a simple embedding in string theory of the mechanism of Kim, Nilles, and Peloso, in which a large effective decay constant arises from alignment of two smaller decay constants. The key ingredient is gaugino condensation on magnetized or multiply-wound D7-branes. We argue that, under very mild assumptions about the topology of the Calabi-Yau, there are controllable points in moduli space with large effective decay constants.
10 pages, two-column format, 3 figures. References added
References in corpus (24)
- Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
- BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
- Axions In String Theory
- CFT's From Calabi-Yau Four-folds
- 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
- N-flation
- Oscillations in the CMB from Axion Monodromy Inflation
- The effective action of N=1 Calabi-Yau orientifolds
- On the Possibility of Large Axion Decay Constants
- The effective action of D7-branes in N=1 Calabi-Yau orientifolds
- D-terms and F-terms from D7-brane fluxes
- Axion Inflation in Type II String Theory
- Dante's Inferno
- The Universal Kaehler Modulus in Warped Compactifications
- On moduli and effective theory of N=1 warped flux compactifications
- Multi-Natural Inflation in Supergravity and BICEP2
- On Fluxed Instantons and Moduli Stabilisation in IIB Orientifolds and F-theory
- Multi-Natural Inflation in Supergravity
- A Field Range Bound for General Single-Field Inflation
- Open String Wavefunctions in Warped Compactifications
- The effective action of D-branes in Calabi-Yau orientifold compactifications
Cited by in corpus (66)
- The landscape of QCD axion models
- A search for ultra-light axions using precision cosmological data
- The Powers of Monodromy
- Gauge-preheating and the end of axion inflation
- Backreacted Axion Field Ranges in String Theory
- Natural Inflation and Quantum Gravity
- On Axionic Field Ranges, Loopholes and the Weak Gravity Conjecture
- A Flux-Scaling Scenario for High-Scale Moduli Stabilization in String Theory
- Tuning and Backreaction in F-term Axion Monodromy Inflation
- Robust Inflation from Fibrous Strings
- Axion Monodromy and the Weak Gravity Conjecture
- Warping the Weak Gravity Conjecture
- D7-Brane Moduli Space in Axion Monodromy and Fluxbrane Inflation
- Planckian Axions in String Theory
- Topological Defects and nano-Hz Gravitational Waves in Aligned Axion Models
- Axion Landscape and Natural Inflation
- Fuzzy Dark Matter Candidates from String Theory
- Towards Natural Inflation in String Theory
- Special Points of Inflation in Flux Compactifications
- Combining Universal and Odd RR Axions for Aligned Natural Inflation
- Axion monodromy inflation with multi-natural modulations
- Large Field Inflation from Axion Mixing
- Trajectories with suppressed tensor-to-scalar ratio in Aligned Natural Inflation
- Implications of the Cosmic Birefringence Measurement for the Axion Dark Matter Search
- Aligned natural inflation with modulations
- D-brane Potentials in the Warped Resolved Conifold and Natural Inflation
- Early Dark Energy in Type IIB String Theory
- Observable Chiral Gravitational Waves from Inflation in String Theory
- Systematics of type IIB moduli stabilisation with odd axions
- Modified Lyth bound and implications of BICEP2 results
- Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape
- Dimensional oxidation and modular completion of non-geometric type IIB action
- Towards natural inflation from weakly coupled heterotic string theory
- On chromonatural inflation in string theory
- Chiral primordial blue tensor spectra from the axion-gauge couplings
- Natural Inflation and Low Energy Supersymmetry
- Tensor Spectra Templates for Axion-Gauge Fields Dynamics during Inflation
- Gravitational waves from fermion production during axion inflation
- Helical Inflation and Cosmic Strings
- Inflation by Alignment
- A no-go theorem for monodromy inflation
- Thraxions: Towards Full String Models
- Natural Inflation from Near Alignment in Heterotic String Theory
- Issues in Complex Structure Moduli Inflation
- Dynamical breaking of shift-symmetry in supergravity-based inflation
- New model of axion monodromy inflation and its cosmological implications
- Magnon Inflation: Slow Roll with Steep Potentials
- Distinguishing between Extra Natural Inflation and Natural Inflation after BICEP2
- Harmonic Hybrid Inflation
- Clearing the Brush: The Last Stand of Solo Small Field Inflation
- Phases of Inflation
- Non-Uniqueness of Classical Inflationary Trajectories on a High-Dimensional Landscape
- Aligned Natural Inflation in the Large Volume Scenario
- Evidence for Inflation in an Axion Landscape
- Large Field Inflation Models from Higher-Dimensional Gauge Theories
- Enhancement of axion decay constants in type IIA theory?
- Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
- Analytic results in aligned axion inflation
- On Natural Inflation and Moduli Stabilisation in String Theory
- Supersymmetric Inflation from the Fifth Dimension
- Natural Inflation on the brane with a TeV-scale gravity: Parameter constraints after Planck 2015
- Numerical evaluation of the tensor bispectrum in two field inflation
- Slow-roll Analysis of Double Field Axion Inflation
- Enhancement of the Axion Decay Constant in Inflation and the Weak Gravity Conjecture
- Particle physics and cosmology intertwined
- Twisting inflation to sub-Planckian axion decay constants