English

Gravastar in the framework of Loop Quantum Cosmology

General Relativity and Quantum Cosmology 2026-02-06 v1 Astrophysics of Galaxies

Abstract

In this paper we attempt to construct a regular gravastar model using the UV corrected framework of Loop Quantum Cosmology. We find that a stable gravastar model can be constructed with a number of unique features: (i) no thin shell approximation needs to be invoked to obtain solutions in the shell which can be considered to be of a finite thickness, (ii) the central singularity of a self gravitating object can be averted by a bounce mechanism, such that the interior density of the gravastar reaches a maximum critical density and cannot be raised further due to an operative repulsive force, (iii) the inherent isotropy of the effective fluid description does not prevent the formation of a stable gravastar and anisotropic pressures is not an essential requirement.

Keywords

Cite

@article{arxiv.2311.00692,
  title  = {Gravastar in the framework of Loop Quantum Cosmology},
  author = {Shounak Ghosh and Rikpratik Sengupta and Mehedi Kalam},
  journal= {arXiv preprint arXiv:2311.00692},
  year   = {2026}
}

Comments

15 pages, 11 figures

R2 v1 2026-06-28T13:08:51.349Z