Superdense star in a space-time with minimal length

In this paper we generalise core-envelope model of superdense star to a non-commutative space-time and study the modifications due to the existence of a minimal length, predicted by various approaches to quantum gravity. We first derive Einstein's field equation in \(\kappa\)-deformed space-tim...

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Veröffentlicht in:arXiv.org 2019-01
Hauptverfasser: Bhanu, Kiran S, Harikumar, E, Rajagopal, Vishnu
Format: Artikel
Sprache:eng
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Zusammenfassung:In this paper we generalise core-envelope model of superdense star to a non-commutative space-time and study the modifications due to the existence of a minimal length, predicted by various approaches to quantum gravity. We first derive Einstein's field equation in \(\kappa\)-deformed space-time and use this to set up non-commutative version of core-envelope model describing superdense stars. We derive \(\kappa\)-deformed law of density variation, valid up to first order approximation in deformation parameter and obtain radial and tangential pressures in \(\kappa\)-deformed space-time. We also derive \(\kappa\)-deformed strong energy conditions and obtain a bound on the deformation parameter.
ISSN:2331-8422
DOI:10.48550/arxiv.1901.03755