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arXiv · 2409.01298

Three-dimensional non-relativistic Hietarinta supergravity

Patrick Concha·Evelyn Rodríguez·Sebastián Salgado
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Abstract

In this work we present the non-relativistic regime of the Hietarinta gravity theory and its extension to supergravity. At the bosonic level, we derive the non-relativistic version of the Hietarinta model by employing a contraction process and addressing the non-degeneracy of the invariant metric. To incorporate supersymmetry, we apply the Lie algebra expansion method to obtain the non-relativistic formulation of $\mathcal{N}=2$ Hietarinta supergravity. Our results reveal that the non-relativistic Hietarinta theory encompasses the extended Bargmann (super)gravity as a special case, yet it differs significantly from other existing non-relativistic (super)gravity models. Furthermore, we generalize our analysis to include a cosmological constant term in the non-relativistic Hietarinta (super)gravity action and examine its effects on the torsion structure.

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Patrick Concha, Evelyn Rodríguez, Sebastián Salgado. 2024-12-30. Three-dimensional non-relativistic Hietarinta supergravity. https://doi.org/10.1140/epjc%2Fs10052-025-13761-6

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