Extranatural Inflation

Abstract

We present a new model of inflation in which the inflaton is the extra component of a gauge field in a 5d theory compactified on a circle. The chief merit of this model is that the potential comes only from non-local effects so that its flatness is not spoiled by higher dimensional operators or quantum gravity corrections. The model predicts a red spectrum (n ~ 0.96) and a significant production of gravitational waves (r ~ 0.11). We also comment on the relevance of this idea to quintessence.

4 pages. Minor corrections and references added. Accepted for PRL

References in corpus (3)

• Radiative Corrections to Kaluza-Klein Masses
• Bulk and brane radiative effects in gauge theories on orbifolds
• Natural Theories of Ultra-Low Mass PNGB's: Axions and Quintessence

Cited by in corpus (175)

• The String Landscape, Black Holes and Gravity as the Weakest Force
• Encyclopaedia Inflationaris
• Cosmological parameter analysis including SDSS Ly-alpha forest and galaxy bias: constraints on the primordial spectrum of fluctuations, neutrino mass, and dark energy
• Flux Compactification
• Gravity Waves and Linear Inflation from Axion Monodromy
• Completing Natural Inflation
• The shape of non-Gaussianities
• Hilltop Inflation
• A Natural Framework for Chaotic Inflation
• Particle physics models of inflation and curvaton scenarios
• Gauge Field Production in Axion Inflation: Consequences for Monodromy, non-Gaussianity in the CMB, and Gravitational Waves at Interferometers
• On non-gaussianities in single-field inflation
• N-flationary magnetic fields
• Phenomenology of a Pseudo-Scalar Inflaton: Naturally Large Nongaussianity
• An Ignoble Approach to Large Field Inflation
• A review of Axion Inflation in the era of Planck
• Natural inflation with multiple sub-Planckian axions
• Emergence and the Swampland Conjectures
• Sharpening the Weak Gravity Conjecture with Dimensional Reduction
• The Weak Gravity Conjecture: A Review
• Natural Inflation and Quantum Gravity
• Inflation models and observation
• Weak Gravity Strongly Constrains Large-Field Axion Inflation
• The Curvaton as a Pseudo-Nambu-Goldstone Boson
• Observational tests of inflation with a field derivative coupling to gravity
• Naturalness and Higgs Decays in the MSSM with a Singlet
• On the Possibility of Large Axion Moduli Spaces
• Chern-Simons production during preheating in hybrid inflation models
• Opening up the QCD axion window
• Considerations in optimizing CMB polarization experiments to constrain inflationary physics
• Disformal Inflation
• A QCD Axion from Higher Dimensional Gauge Field
• Running Spectral Index from Inflation with Modulations
• Impact of neutrino properties on the estimation of inflationary parameters from current and future observations
• A numerical study of pseudoscalar inflation with an axion-gauge field coupling
• The Weak Gravity Conjecture and Effective Field Theory
• Non-gaussianity and cosmic uncertainty in curvaton-type models
• Photon Masses in the Landscape and the Swampland
• Is the Relaxion an Axion?
• On: Natural Inflation
• Curvaton Dynamics and the Non-Linearity Parameters in Curvaton Model
• Generalized Symmetry Breaking Scales and Weak Gravity Conjectures
• About the holographic pseudo-Goldstone boson
• Healing the cosmological constant problem during inflation through a unified quasi-quintessence matter field
• Warping the Weak Gravity Conjecture
• Natural Inflation: Consistency with Cosmic Microwave Background Observations of Planck and BICEP2
• Observational Constraints on Gauge Field Production in Axion Inflation
• Running of the Scalar Spectral Index from Inflationary Models
• Natural Chaotic Inflation and UV Sensitivity
• Axion Inflation and Gravity Waves in String Theory
• Inflation from Broken Scale Invariance
• Superfield Approach to 5D Conformal SUGRA and the Radion
• Natural Inflation: status after WMAP 3-year data
• Hierarchical Axion Inflation
• How Many $e$-Folds Should We Expect from High-Scale Inflation?
• Of pNGB QuiNtessence
• ${\varphi }^2$ or Not ${\varphi }^2$: Testing the Simplest Inflationary Potential
• Inflation models after WMAP year three
• A Simple Model for Quintessential Inflation
• The Lyth Bound and the End of Inflation
• An inflation model with large variations in spectral index
• Nonlinear perturbations from axion-gauge fields dynamics during inflation
• Gravitational Imprints of Flavor Hierarchies
• Spatial Variation of the Fine-Structure Parameter and the Cosmic Microwave Background
• A Chern-Simons Pandemic
• Particle physics models of inflation
• $\mu$-Distortions or Running: A Guaranteed Discovery from CMB Spectrometry
• Warped Axions
• Combining Universal and Odd RR Axions for Aligned Natural Inflation
• Constraints on the spectral index for the inflation models in string landscape
• Nonlinear perturbations from the coupling of the inflaton to a non-Abelian gauge field, with a focus on Chromo-Natural Inflation
• Natural Inflation: the status after WMAP 3-year data
• Trajectories with suppressed tensor-to-scalar ratio in Aligned Natural Inflation
• Chromo-Natural Inflation in the Axiverse
• Transplanckian Censorship and Global Cosmic Strings
• Avoiding the blue spectrum and the fine-tuning of initial conditions in hybrid inflation
• Saving Natural Inflation
• Wilson Line Inflation
• Bounds on masses of bulk fields in string compactifications
• Natural Inflation with a periodic non-minimal coupling
• Minimal gauge inflation and the refined Swampland conjecture
• Axion Mass from Magnetic Monopole Loops
• An Attempt to Solve the Hierarchy Problem Based on Gravity-Gauge-Higgs Unification Scenario
• Confronting pNGB quintessence with data
• Mutated Hilltop Inflation : A Natural Choice for Early Universe
• The inflating curvaton
• Natural inflation with and without modulations in type IIB string theory
• The masses of weakly-coupled scalar fields in the early Universe
• Tachyon Inflation in Teleparallel Gravity
• Warming up cold inflation
• Feeding your Inflaton: Non-Gaussian Signatures of Interaction Structure
• Quintessence from Shape Moduli
• Strong CP problem and axion dark matter with small instantons
• Deconstructed U(1) and Supersymmetry Breaking
• Natural inflation at the GUT scale
• Single field inflation with modulated potential in light of the Planck and BICEP2
• Radion Assisted Gauge Inflation
• Energy-momentum tensor and helicity for gauge fields coupled to a pseudo-scalar inflaton
• Fluxbrane Inflation
• Cosmological Constraints on the Gravitational Interactions of Matter and Dark Matter
• Large Field Inflation and Gravitational Entropy
• Gauge Quintessence
• Non-Gaussianity from Axion Monodromy Inflation
• Monodromy Inflation in SUSY QCD
• Evading the Lyth Bound in Hybrid Natural Inflation
• Post-inflationary behavior of adiabatic perturbations and tensor-to-scalar ratio
• What if ALP dark matter for the XENON1T excess is the inflaton
• Dynamics of Quintessential Inflation
• Study of Goldstone Inflation in the domain of Einstein-Gauss-Bonnet gravity
• Axion Periodicity and Coupling Quantization in the Presence of Mixing
• Stochastic Effects in Axion Inflation and Primordial Black Holes Formation
• Natural Braneworld Inflation in Light of Recent Results from Planck and BICEP2
• Constraints on Early Dark Energy from the Axion Weak Gravity Conjecture
• Natural Milli-Charged Inflation
• Reheating with a Composite Higgs
• Excursions through KK modes
• High-Quality Axions from Higher-Form Symmetries in Extra Dimensions
• Kinetic Gravity Braiding and axion inflation
• Early Dark Energy from a Higher-dimensional Gauge Theory
• Natural braneworld inflation and baryogenesis
• Universality of linear perturbations in SU($N$)-natural inflation
• Chiral gravitational waves and primordial black holes in UV-protected Natural Inflation
• Scale dependence of $f_{NL}$ in N-flation
• Gravitational Instabilities and Censorship of Large Scalar Field Excursions
• Distinguishing between Extra Natural Inflation and Natural Inflation after BICEP2
• Scalar-tensor extension of Natural Inflation
• The Super-Planckian Axion Strikes Back
• A warped relaxion
• Chaotic Brane Inflation
• Weak Gravity Conjecture From Low Energy Observers' Perspective
• Study in the noncanonical domain of Goldstone inflation
• Gauge and Modulus Inflation from 5D Orbifold SUGRA
• BICEP2, the curvature perturbation and supersymmetry
• Inflation from radion gauge-Higgs potential at Planck scale
• $U(1{)}_{B-L}$ extra-natural inflation with Standard Model on a brane
• Small Vacuum Energy from Small Equivalence Violation in Scalar Gravity
• Orbifold GUT inflation
• Axion species scale and axion weak gravity conjecture-like bound
• Radion stabilization in the presence of Wilson line phase
• Natural inflation in 5D warped backgrounds
• Large Field Inflation Models from Higher-Dimensional Gauge Theories
• Modified natural inflation: A small single field model with a large tensor to scalar ratio
• Instanton Resummation and the Weak Gravity Conjecture
• Vacuum expectation values in non-trivial background space from three types of UV improved Green's functions
• Large Field Excursions from Dimensional (De)construction
• Updated Constraints on Large Field Hybrid Inflation
• Radion Inflation in Higher-Dimensional Gravity Theory
• Power spectrum oscillations from Planck-suppressed operators in effective field theory motivated monodromy inflation
• Consistency Relations for Large Field Inflation
• The reheating constraints to natural inflation in Horndeski gravity
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• No Warm Inflation From a Vanilla Axion
• The IR Obstruction to UV Completion for Dante's Inferno Model with Higher-Dimensional Gauge Theory Origin
• Electromagnetic coupling effects in natural inflation
• Real-Time Corrections to the Effective Potential
• Extranatural Flux Inflation
• On the prospects of thermalization of axion-SU(2) inflation
• Inflating without a flat potential: Viscous inflation
• Extra-Natural Inflation (De)constructed
• Cosmological constant from gauge fields on extra dimensions
• Kaluza-Klein Schwinger effect
• Hybrid inflation and gravitational waves from accidentally light scalars
• Roles of electric field/time-dependent Wilson line in toroidal compactification with or without magnetic fluxes
• Tunnelling in Dante's Inferno
• Natural Inflation from 5D SUGRA and Low Reheat Temperature
• Supersymmetric Inflation from the Fifth Dimension
• Radiative Inflation and Dark Energy
• Extranatural Inflation Redux
• Graviton loop contribution to Higgs potential in gauge-Higgs unification
• Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments
• Pseudo-Goldstones from Supersymmetric Wilson Lines on 5D Orbifolds
• Sustainability of multi-field inflation and bound on string scale
• Inflation in a scalar-vector gravity theory
• Effects of Fermion Masses and Twisting on Non-Integrable Phases on Compact Extra Dimensions
• Minimal gauge inflation