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 |
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Hauptverfasser: | , , |
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. |
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ISSN: | 2331-8422 |
DOI: | 10.48550/arxiv.1901.03755 |