Natural Inflation and Low Energy Supersymmetry

Abstract

Natural (axionic) inflation provides a well-motivated and predictive scheme for the description of the early universe. It leads to sizeable primordial tensor modes and thus a high mass scale of the inflationary potential. Naively this seems to be at odds with low (TeV) scale supersymmetry, especially when embedded in superstring theory. We show that low scale supersymmetry is compatible with natural (high scale) inflation. The mechanism requires the presence of two axions that are provided through the moduli of string theory.

arXiv comment15 pages, 4 figures

References in corpus (45)

• de Sitter Vacua in String Theory
• Hierarchies from Fluxes in String Compactifications
• BICEP2 I: Detection Of B-mode Polarization at Degree Angular Scales
• Axions In String Theory
• A Joint Analysis of BICEP2/Keck Array and Planck Data
• CFT's From Calabi-Yau Four-folds
• Monodromy in the CMB: Gravity Waves and String Inflation
• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
• Flux compactifications in string theory: a comprehensive review
• Completing Natural Inflation
• Natural Chaotic Inflation in Supergravity
• Assisted inflation
• Oscillations in the CMB from Axion Monodromy Inflation
• Spacetime Instanton Corrections in 4D String Vacua - The Seesaw Mechanism for D-Brane Models
• Landscape, the Scale of SUSY Breaking, and Inflation
• On the Possibility of Large Axion Decay Constants
• Neutrino Majorana Masses from String Theory Instanton Effects
• D-brane Instantons in Type II String Theory
• New models of chaotic inflation in supergravity
• General inflaton potentials in supergravity
• Stringy Instantons and Quiver Gauge Theories
• Natural inflation with multiple sub-Planckian axions
• F-term Axion Monodromy Inflation
• Simple exercises to flatten your potential
• D7-Brane Chaotic Inflation
• Towards Universal Axion Inflation and Reheating in String Theory
• Axion Inflation in Type II String Theory
• Aligned Natural Inflation: Monodromies of two Axions
• Aligned Natural Inflation in String Theory
• Dilaton Destabilization at High Temperature
• The Challenge of Realizing F-term Axion Monodromy Inflation in String Theory
• Axion Inflation and Gravity Waves in String Theory
• Multi-Natural Inflation in Supergravity
• Hierarchical Axion Inflation
• Non-Perturbative Corrections and Modularity in N=1 Type IIB Compactifications
• Natural Inflation in Supergravity and Beyond
• Axion Inflation in F-theory
• Combining Universal and Odd RR Axions for Aligned Natural Inflation
• Supersymmetric Moduli Stabilization and High-Scale Inflation
• D-brane Potentials in the Warped Resolved Conifold and Natural Inflation
• Moduli stabilization and SUSY breaking in heterotic orbifold string models
• Inflation with Fayet-Iliopoulos Terms
• On supersymmetric Minkowski vacua in IIB orientifolds
• Aligned Natural Inflation and Moduli Stabilization from Anomalous $U(1)$ Gauge Symmetries

Cited by in corpus (17)

• Transplanckian axions !?
• A Flux-Scaling Scenario for High-Scale Moduli Stabilization in String Theory
• Modulated Natural Inflation
• Can Gravitational Instantons Really Constrain Axion Inflation?
• Trajectories with suppressed tensor-to-scalar ratio in Aligned Natural Inflation
• On the viability of m**2 phi**2 and natural inflation
• Chromo-Natural inflation in Supergravity
• Microscopic Origin of Volume Modulus Inflation
• Axion Inflation and Affleck-Dine Baryogenesis
• Probing the Weak Gravity Conjecture in the Cosmic Microwave Background
• The two-field regime of natural inflation
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Deriving the Inflaton in Compactified M-theory with a De Sitter Vacuum
• Natural Chain Inflation
• On Natural Inflation and Moduli Stabilisation in String Theory
• Supersymmetric Inflation from the Fifth Dimension
• Slow-roll Analysis of Double Field Axion Inflation