English

Smooth cosmological phase transition in the Horava-Lifshitz gravity

High Energy Physics - Theory 2014-11-20 v3 Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology

Abstract

We show that the cosmological phase transition from the first accelerated expansion in the early universe to the second accelerated expansion over the intermediate decelerated expansion is possible in the HL gravity without the ``detailed balance'' condition if the dark scalar energy density is assumed to be negative. Moreover, we obtain various evolutions depending on the scale factor and the expansion rate. Finally, we discuss the existence of the minimum scale in connection with the singularity free condition.

Keywords

Cite

@article{arxiv.1003.3055,
  title  = {Smooth cosmological phase transition in the Horava-Lifshitz gravity},
  author = {Edwin J. Son and Wontae Kim},
  journal= {arXiv preprint arXiv:1003.3055},
  year   = {2014}
}

Comments

13 pages, 6 figures; v2. some comments and references added; v3. version to appear in JCAP