English

Universe acceleration in modified gravities: $F(R)$ and $F(T)$ cases

High Energy Physics - Theory 2014-03-03 v1 Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology High Energy Physics - Phenomenology

Abstract

We review recent progress on cosmological issues and theoretical properties of modified gravity theories. In particular, we explicitly explore the conformal transformation, the Starobinsky inflation, and a unified scenario of inflation and late time acceleration in F(R)F(R) gravity and F(T)F(T) gravity (extended teleparallel gravity). Furthermore, we examine neutron stars and the hyperon problem in F(R)F(R) gravity. Moreover, for loop quantum cosmology (LQC), the natures of finite-time future singularities in F(T)F(T) gravity are presented. In addition, we investigate F(T)F(T) gravity theories from the Kaluza-Klein (KK) and Randall-Sundrum (RS) theories.

Keywords

Cite

@article{arxiv.1402.7114,
  title  = {Universe acceleration in modified gravities: $F(R)$ and $F(T)$ cases},
  author = {Kazuharu Bamba and Sergei D. Odintsov},
  journal= {arXiv preprint arXiv:1402.7114},
  year   = {2014}
}

Comments

14 pages, no figure, contribution to KMI International Symposium 2013 on "Quest for the Origin of Particles and the Universe", 11-13 Dec. 2013, KMI, Nagoya University