https://doi.org/10.1140/epjp/s13360-024-05264-2
Regular Article
Gravastar in the framework of Loop Quantum Cosmology
1
Department of Physics, Aliah University, 700160, Kolkata, West Bengal, India
2
Directorate of Legal Metrology, Department of Consumer Affairs, Govt. of West Bengal, Malbazar, 735221, Jalpaiguri, West Bengal, India
Received:
26
October
2023
Accepted:
9
May
2024
Published online:
1
June
2024
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.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
