Two non-perturbative $α^{\prime}$ corrected or loop corrected string cosmological solutions
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| _version_ | 1866929253656821760 |
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| author | Song, Li Chen, Deyou |
| author_facet | Song, Li Chen, Deyou |
| contents | 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 the sense that they can straightforwardly match the perturbative solution to arbitrarily high orders in the perturbative region. The first solution includes non-perturbative $α'$ corrections based on Hohm-Zwiebach action. We then use the simple phenomenological map between $α^{\prime}$ corrected theory and loop corrected theory 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_07031 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Two non-perturbative $α^{\prime}$ corrected or loop corrected string cosmological solutions Song, Li Chen, Deyou High Energy Physics - Theory General Relativity and Quantum Cosmology 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 the sense that they can straightforwardly match the perturbative solution to arbitrarily high orders in the perturbative region. The first solution includes non-perturbative $α'$ corrections based on Hohm-Zwiebach action. We then use the simple phenomenological map between $α^{\prime}$ corrected theory and loop corrected theory 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. |
| title | Two non-perturbative $α^{\prime}$ corrected or loop corrected string cosmological solutions |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2306.07031 |