Early Dark Energy in Type IIB String Theory

Abstract

Early Dark Energy (EDE) is a promising model to resolve the Hubble Tension, that, informed by Cosmic Microwave Background data, features a generalization of the potential energy usually associated with axion-like particles. We develop realizations of EDE in type IIB string theory with the EDE field identified as either a $C_4$ or $C_2$ axion and with full closed string moduli stabilization within the framework of either KKLT or the Large Volume Scenario. We explain how to achieve a natural hierarchy between the EDE energy scale and that of the other fields within a controlled effective field theory. We argue that the data-driven EDE energy scale and decay constant can be achieved without any tuning of the microscopic parameters for EDE fields that violate the weak gravity conjecture, while for states that respect the conjecture it is necessary to introduce a fine-tuning. This singles out as the most promising EDE candidates, amongst several working models, the $C_2$ axions in LVS with 3 non-perturbative corrections to the superpotential generated by gaugino condensation on D7-branes with non-zero world-volume fluxes.

arXiv comment49 pages, 4 figures, 4 tables

References in corpus (103)

• de Sitter Vacua in String Theory
• The clustering of galaxies in the completed SDSS-III Baryon Oscillation Spectroscopic Survey: cosmological analysis of the DR12 galaxy sample
• A Comprehensive Measurement of the Local Value of the Hubble Constant with 1 km/s/Mpc Uncertainty from the Hubble Space Telescope and the SH0ES Team
• Axions In String Theory
• The String Landscape, Black Holes and Gravity as the Weakest Force
• Tensions between the Early and the Late Universe
• Early Dark Energy Can Resolve The Hubble Tension
• Systematics of Moduli Stabilisation in Calabi-Yau Flux Compactifications
• Gravity Waves and Linear Inflation from Axion Monodromy
• Cosmic Microwave Background Anisotropies
• The Hubble Hunter's Guide
• Non-Perturbative Superpotentials In String Theory
• The type IIB string axiverse and its low-energy phenomenology
• A search for ultra-light axions using precision cosmological data
• The effective action of N=1 Calabi-Yau orientifolds
• The QCD Axion and Moduli Stabilisation
• Oscillating scalar fields and the Hubble tension: a resolution with novel signatures
• From Linear SUSY to Constrained Superfields
• Kahler Moduli Inflation
• Early dark energy from massive neutrinos -- a natural resolution of the Hubble tension
• Mirror Symmetry for Two Parameter Models -- I
• Resolving the Hubble Tension with New Early Dark Energy
• Fibre Inflation: Observable Gravity Waves from IIB String Compactifications
• Cosmology with Nilpotent Superfields
• The Minimal Volkov - Akulov - Starobinsky Supergravity
• General Analysis of LARGE Volume Scenarios with String Loop Moduli Stabilisation
• New Early Dark Energy
• Why reducing the cosmic sound horizon alone can not fully resolve the Hubble tension
• Gaugino Condensates and D-terms from D7-branes
• Moduli Stabilisation versus Chirality for MSSM like Type IIB Orientifolds
• de Sitter String Vacua from Kahler Uplifting
• Early dark energy is not excluded by current large-scale structure data
• String or M theory axion as a quintessence
• D-terms and F-terms from D7-brane fluxes
• De Sitter vs Quintessence in String Theory
• D-Branes at del Pezzo Singularities: Global Embedding and Moduli Stabilisation
• The Hubble Tension in Light of the Full-Shape Analysis of Large-Scale Structure Data
• Explicit de Sitter Flux Vacua for Global String Models with Chiral Matter
• Early dark energy resolution to the Hubble tension in light of weak lensing surveys and lensing anomalies
• New constraint on Early Dark Energy from Planck and BOSS data using the profile likelihood
• $\overline{D3}$ and dS
• De Sitter from T-branes
• Thermal Friction as a Solution to the Hubble Tension
• Axion Inflation in Type II String Theory
• Volume Modulus Inflation and the Gravitino Mass Problem
• Emergence of Spontaneously Broken Supersymmetry on an Anti-D3-Brane in KKLT dS Vacua
• Dark Energy at early times and ACT: a larger Hubble constant without late-time priors
• De Sitter String Vacua from Dilaton-dependent Non-perturbative Effects
• Building an explicit de Sitter
• Constraints on Axion Inflation from the Weak Gravity Conjecture
• Dynamical supersymmetry breaking in models with a Green-Schwarz mechanism
• Multi-Natural Inflation
• Comparing early dark energy and extra radiation solutions to the Hubble tension with BBN
• Aligned Natural Inflation in String Theory
• Anisotropic Modulus Stabilisation: Strings at LHC Scales with Micron-sized Extra Dimensions
• Robust Inflation from Fibrous Strings
• Poly-instanton Inflation
• Runaway Quintessence, Out of the Swampland
• Early-Universe-Physics Insensitive and Uncalibrated Cosmic Standards: Constraints on ${\Omega }_{\mathrm{m}}$ and Implications for the Hubble Tension
• On Fluxed Instantons and Moduli Stabilisation in IIB Orientifolds and F-theory
• The Challenge of Realizing F-term Axion Monodromy Inflation in String Theory
• D3/D7 Branes at Singularities: Constraints from Global Embedding and Moduli Stabilisation
• Natural Quintessence in String Theory
• Toric K3-Fibred Calabi-Yau Manifolds with del Pezzo Divisors for String Compactifications
• Multi-Natural Inflation in Supergravity
• Global String Embeddings for the Nilpotent Goldstino
• Correlation between Dark Matter and Dark Radiation in String Compactifications
• Non-Perturbative Corrections and Modularity in N=1 Type IIB Compactifications
• Brane induced supersymmetry breaking and de Sitter supergravity
• dS Vacua and the Swampland
• The Early Dark Sector, the Hubble Tension, and the Swampland
• On Classifying the Divisor Involutions in Calabi-Yau Threefolds
• Global Embedding of Fibre Inflation Models
• The Goldstino Brane, the Constrained Superfields and Matter in N=1 Supergravity
• ${\alpha }^{\prime }$ Inflation: Moduli Stabilisation and Observable Tensors from Higher Derivatives
• Dark Energy, $H_0$ and Weak Gravity Conjecture
• A New Class of de Sitter Vacua in Type IIB Large Volume Compactifications
• String Theory Origin of Constrained Multiplets
• Inflation, de Sitter Landscape and Super-Higgs effect
• Chiral Gravitational Waves and Baryon Superfluid Dark Matter
• Chiral Global Embedding of Fibre Inflation Models
• Quintessence and the Swampland: The parametrically controlled regime of moduli space
• Anti-D3 branes and moduli in non-linear supergravity
• Fuzzy Dark Matter Candidates from String Theory
• Towards Natural Inflation in String Theory
• Constrained superfields from an anti-D3-brane in KKLT
• Quintessence and the Swampland: The numerically controlled regime of moduli space
• de Sitter Vacua with a Nilpotent Superfield
• Reheating and Dark Radiation after Fibre Inflation
• The supersymmetric anti-D3-brane action in KKLT
• Constraining early dark energy with gravitational waves before recombination
• Yoga Dark Energy: Natural Relaxation and Other Dark Implications of a Supersymmetric Gravity Sector
• Observable Chiral Gravitational Waves from Inflation in String Theory
• Systematics of type IIB moduli stabilisation with odd axions
• Multi-instanton and string loop corrections in toroidal orbifold models
• Strongly-Interacting Ultralight Millicharged Particles
• Addressing the Hubble and $S_8$ Tensions with a Kinetically Mixed Dark Sector
• Microscopic Origin of Volume Modulus Inflation
• Orientifold Calabi-Yau Threefolds with Divisor Involutions and String Landscape
• Four Kahler Moduli Stabilisation in type IIB Orientifolds with K3-fibred Calabi-Yau threefold compactification
• D-brane instantons on non-Spin cycles
• Non-supersymmetric String Models from Anti-D3-/D7-branes in Strongly Warped Throats
• On K3-fibred LARGE Volume Scenario with de Sitter vacua from anti-D3-branes

Cited by in corpus (9)

• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• Observational constraints on early dark energy
• Impact of the Hubble tension on the $r$-$n_s$ contour
• Testing the $n_s-H_0$ scaling relation with Planck-independent CMB data
• Can Early Dark Energy be Probed by the High-Redshift Galaxy Abundance?
• Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the string-theoretical Swampland Programme
• Beyond LambdaCDM: How the Hubble tension challenges early universe physics
• Spontaneous baryogenesis and generation of gravitational waves in a new model of quintessential $\alpha$-attractor
• Cosmological Implications of Thermodynamic Split Conjecture