Dual Space-Time and Nonsingular String Cosmology

Abstract

Making use of the T-duality symmetry of superstring theory, and of the double geometry from Double Field Theory, we argue that cosmological singularities of a homogeneous and isotropic universe disappear. In fact, an apparent big bang singularity in Einstein gravity corresponds to a universe expanding to infinite size in the dual dimensions.

7 pages, 3 figures. arXiv admin note: text overlap with arXiv:1710.02412

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• The Pre-Big Bang Scenario in String Cosmology
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Cited by in corpus (19)

• Duality Invariant Cosmology to all Orders in ${\alpha }^{\prime }$
• String Cosmology backgrounds from Classical String Geometry
• T-Dual Cosmological Solutions of Double Field Theory II
• T-dual cosmological solutions in double field theory
• Cosmology at the top of the ${\alpha }^{\prime }$ tower
• Solution of the Size and Horizon Problems from Classical String Geometry
• $\mathbf{O}(D,D)$ completion of the Friedmann equations
• Creating Spatial Flatness by Combining String Gas Cosmology and Power Law Inflation
• Consequences of Godel Theorems on Third Quantized Theories Like String Field Theory and Group Field Theory
• Limitations of an Effective Field Theory Treatment of Early Universe Cosmology
• Non-exotic conformal structure of weak exotic singularities
• Cosmological Perturbations in Double Field Theory
• Inflation in String Field Theory
• Perturbations in $\mathbf{O}(D,D)$ string cosmology from double field theory
• Gravitational Core of Double Field Theory: Lecture Notes
• Dilatonic Effect in Double Field Theory Cosmology
• Stability Analysis of the Cosmological Dynamics of $O(D,D)$-complete Stringy Gravity
• Black hole solutions in double field theory
• $L_{\infty }$-algebras and membrane sigma models