Superstring cosmology for N_4 = 1 -> 0 superstring vacua
arXiv:1003.0471 · doi:10.1002/prop.201100040
Abstract
We study the cosmology of perturbative heterotic superstring theory during the radiation-like era for semi-realistic backgrounds with initial supersymmetry. This analysis is valid for times after the Hagedorn era (or alternatively inflation era) but before the electroweak symmetry breaking transition. We find an attraction to a radiation-like era with the ratio of the supersymmetry breaking scale to temperature stabilized. This provides a dynamical mechanism for setting the supersymmetry breaking scale and its corresponding hierarchy with the Planck scale. For the internal space, we find that orbifold directions never decompactify, while toroidal directions may decompactify only when they are wrapped by certain geometrical fluxes which break supersymmetry. This suggests a mechanism for generating spatial directions during the radiation-like era. Moreover, we show that certain moduli may be stabilized during the radiation-like era with masses near the supersymmetry breaking scale. In addition, the moduli do not dominate at late times, thus avoiding the cosmological moduli problem.
54 pages, 3 figures
References in corpus (27)
- String Gas Cosmology and Structure Formation
- D terms from D-branes, gauge invariance and moduli stabilization in flux compactifications
- Exophobic Quasi-Realistic Heterotic String Vacua
- Classification of Heterotic Pati-Salam Models
- Resolution of Hagedorn singularity in superstrings with gravito-magnetic fluxes
- An Alternative for Moduli Stabilisation
- Thermal/quantum effects and induced superstring cosmologies
- Cosmological Phases of the String Thermal Effective Potential
- Axionic symmetry gaugings in N=4 supergravities and their higher-dimensional origin
- Induced superstring cosmologies and moduli stabilization
- Non-singular string cosmology in a 2d Hybrid model
- On the new string theory inspired mechanism of generation of cosmological perturbations
- Marginal Deformations of Vacua with Massive boson-fermion Degeneracy Symmetry
- Attraction to a radiation-like era in early superstring cosmologies
- Orbifold Symmetry Reductions of Massive Boson-Fermion Degeneracy
- Cosmological Moduli Dynamics
- Massive Boson-Fermion Degeneracy and the Early Structure of the Universe
- The Effect of alpha' Corrections in String Gas Cosmology
- Geometric Precipices in String Cosmology
- Massless D-strings and moduli stabilization in type I cosmology
- A Wave-function for Stringy Universes
- Tree-Level Stability Without Spacetime Fermions: Novel Examples in String Theory
- Inflationary de Sitter solutions from superstrings
- Thermal and quantum induced early superstring cosmology
- Instanton transition in thermal and moduli deformed de Sitter cosmology
- Attractions to radiation-like eras in superstring cosmologies
- String Models with Massive boson-fermion Degeneracy
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- Thermal duality and non-singular cosmology in d-dimensional superstrings
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- Non-singular string cosmology in a 2d Hybrid model
- Large volume susy breaking with a solution to the decompactification problem
- Quantum no-scale regimes and moduli dynamics
- Stability and vacuum energy in open string models with broken supersymmetry
- N=2 -> 0 super no-scale models and moduli quantum stability
- Cosmological Perturbations Across an S-brane
- Massless D-strings and moduli stabilization in type I cosmology
- Quantum no-scale regimes in string theory
- On the stability of open-string orbifold models with broken supersymmetry
- Heterotic-Type I Dual Pairs, Rigid Branes and Broken Susy
- Geometry of orientifold vacua and supersymmetry breaking
- Moduli stabilization in type II Calabi-Yau compactifications at finite temperature
- Closed FRW holography: A time-dependent ER=EPR realization
- One-loop masses of Neumann-Dirichlet open strings and boundary-changing vertex operators
- Large volume supersymmetry breaking without decompactification problem
- Spontaneous dark-matter mass generation along cosmological attractors in string theory
- Lecture notes on thermodynamics of ideal string gases and its application in cosmology
- The Casimir effect in string theory