Two non-perturbative α' or loop corrected string cosmological solutions*
Year: 2023
Type: article
Abstract: In this paper, we present two non-perturbative string cosmological solutions without curvature singularities for the bosonic gravi-dilaton system. These solutions are general in that they can straightforwardly match the perturbative solution to arbitrarily high orders in the perturbative region. The first solution includes non-perturbative <?CDATA $ \alpha' $?> corrections based on Hohm-Zwiebach action. We then use the simple phenomenological map between the <?CDATA $ \alpha^{\prime} $?> and loop corrected theories in string cosmology to construct a non-perturbative loop corrected non-singular solution. Both solutions are non-singular everywhere. Therefore, the pre- and post-big-bangs are smoothly connected by these solutions.
Source: Chinese Physics C
Authors: Li Song, Deyou Chen
Institutions: Sichuan University, Xihua University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,230
OpenAlex ID: W4380487152