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