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New cosmological solutions in hybrid metric-Palatini gravity from dynamical symmetries

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arxiv 2011.05615 v2 pith:ZELPFP5E submitted 2020-11-11 gr-qc math-phmath.MP

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classification gr-qcmath-phmath.MP
keywords conditionscosmologicalexistencehybridintegrablemetric-palatinisolutionstheory
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We investigate the existence of Liouville integrable cosmological models in hybrid metric-Palatini theory. Specifically we use the symmetry conditions for the existence of quadratic in the momentum conservation laws for the field equations as constraint conditions for the determination of the unknown functional form of the theory. The exact and analytic solutions of the integrable systems which found in this study are presented in terms of quadratics and Laurent expansions.

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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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