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Thick brane structures in generalized hybrid metric-Palatini gravity

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arxiv 2010.10074 v1 pith:GV74UGZQ submitted 2020-10-20 gr-qc

João Luís Rosa , Douglas A. Ferreira , Dionisio Bazeia , Francisco S. N. Lobo This is my paper · ORCID
classification gr-qc
keywords gravitationalscalaradditionalbranefieldgeneralizedgravityhybrid
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In this work, we study 5-dimensional braneworld scenarios in the scalar-tensor representation of the generalized hybrid metric-Palatini gravitational theory. We start by considering a model for a brane supported purely by the gravitational scalar fields of the theory and then consider other distinct cases where the models are also supported by an additional matter scalar field. We investigate the stability of the gravity sector and show that the models are all robust against small fluctuations of the metric. In particular, in the presence of the additional scalar field, we find that the profile of the gravitational zero mode may be controlled by the parameters of the model, being also capable of developing internal structure.

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  1. Novel electrically charged wormhole, black hole and black bounce exact solutions in hybrid metric-Palatini gravity

    gr-qc 2024-12 conditional novelty 5.0 of 10

    Exact charged solutions in hybrid metric-Palatini gravity with zero scalar potential produce traversable wormholes, double-horizon black holes, black bounces, and infinite-horizon spacetimes.

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