English

Future singularity in an anisotropic universe

General Relativity and Quantum Cosmology 2024-09-09 v2 Cosmology and Nongalactic Astrophysics High Energy Physics - Theory

Abstract

We investigate future singularities originating from the anisotropy in the Universe. We formulate a new class of singularities in the homogeneous and anisotropic universe, comparing them with the known singularities in the homogeneous and isotropic universe. We also discuss the physical consequences of the new singularities. Moreover, we develop a novel reconstruction method for the anisotropic universe by introducing four scalar fields to reconstruct cosmological models in which future singularities appear. We present an explicit example where the anisotropy may grow in the future up to singularity.

Keywords

Cite

@article{arxiv.2406.18368,
  title  = {Future singularity in an anisotropic universe},
  author = {Taishi Katsuragawa and Shin'ichi Nojiri and Sergei D. Odintsov},
  journal= {arXiv preprint arXiv:2406.18368},
  year   = {2024}
}

Comments

19 pages, version to appear in PRD

R2 v1 2026-06-28T17:19:57.186Z