Circumventing the Ricci-inverse no-go theorem with complexifiable singularities: a novel dark energy model

Mattia Scomparin

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arXiv · 2409.16529

Circumventing the Ricci-inverse no-go theorem with complexifiable singularities: a novel dark energy model

Mattia Scomparin

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Abstract

Ricci-inverse gravity is a new type of fourth-order gravity theory based on the anti-curvature tensor, that is, the inverse of the Ricci tensor. In this context, we introduce a novel method to circumvent the binding effects of a well-known no-go theorem for cosmic trajectories that cannot smoothly join a decelerated cosmic age with the current accelerated expansion of the universe. We therefore design a new class of Ricci-inverse theories whose cosmologies, without falling into no-go singularities, achieve the observed expansion as a stable attractor solution. This new perspective retrains Ricci-inverse cosmologies as viable dark energy models.

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Mattia Scomparin. 2024-09-25. Circumventing the Ricci-inverse no-go theorem with complexifiable singularities: a novel dark energy model. https://arxiv.org/abs/2409.16529

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