English

Braneworld inflation with effective {\alpha}-attractor potential

General Relativity and Quantum Cosmology 2019-05-22 v2

Abstract

In this paper, we study inflation with {\alpha}-attractor potential in the RS braneworlds where high energy corrections to the Friedmann equation facilitate slow roll. In this scenario, we numerically investigate the inflationary parameters and show that the high energy brane corrections have significant effect on the parameter {\alpha}, namely, the lower values of the parameter are preferred by observation in this limit. We find that the sub-Planckian values of the field displacement can be achieved by suitably constraining the brane tension.

Keywords

Cite

@article{arxiv.1807.07443,
  title  = {Braneworld inflation with effective {\alpha}-attractor potential},
  author = {Nur Jaman and Kairat Myrzakulov},
  journal= {arXiv preprint arXiv:1807.07443},
  year   = {2019}
}

Comments

12 pages, 5 figures, Minor corrections the revised version, to appear in PRD

R2 v1 2026-06-23T03:07:28.513Z