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Journal of High Energy Physics

, 2019:263 | Cite as

Non-singular string cosmology via α′ corrections

  • Peng Wang
  • Houwen WuEmail author
  • Haitang Yang
  • Shuxuan Ying
Open Access
Regular Article - Theoretical Physics
  • 23 Downloads

Abstract

In string theory, an important challenge is to show if the big-bang singularity could be resolved by the higher derivative α′ corrections. In this work, based on the Hohm-Zwiebach action, we construct a series of non-singular non-perturbative cosmological solutions with the complete α′ corrections, for the bosonic gravi-dilaton system. In the perturbative regime, these solutions exactly match the perturbative results given in literature. Our results show that the big-bang singularity indeed could be smoothed out by the higher derivative α′ corrections.

Keywords

Bosonic Strings Nonperturbative Effects Spacetime Singularities String Duality 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  • Peng Wang
    • 1
  • Houwen Wu
    • 1
    Email author
  • Haitang Yang
    • 1
  • Shuxuan Ying
    • 1
  1. 1.College of PhysicsSichuan UniversityChengduChina

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