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arXiv · 2412.18054

Covariant LTB collapse in models of loop quantum gravity

Martin Bojowald·Erick I. Duque·Dennis Hartmann
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Abstract

Models of gravitational collapse provide important means to test whether non-classical space-time effects motivated for instance by quantum gravity can be realized in generic ways in physically relevant situations. Here, a detailed analysis of marginally bound Lemaitre-Tolman-Bondi space-times is given in emergent modified gravity, which in particular includes a covariant formulation of holonomy modifications usually considered in models of loop quantum gravity. As a result, generic collapse in this setting is shown to imply a physical singularity that removes the bouncing behavior seen in vacuum space-times with the same type of modifications.

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Martin Bojowald, Erick I. Duque, Dennis Hartmann. 2024-12-24. Covariant LTB collapse in models of loop quantum gravity. https://arxiv.org/abs/2412.18054

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