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arXiv · 1901.06400

Linear and Second-order Geometry Perturbations on Spacetimes with Torsion

Fernando Izaurieta·Eduardo Rodríguez·Omar Valdivia
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Abstract

In order to study gravitational waves in any realistic astrophysical scenario, one must consider geometry perturbations up to second order. Here, we present a general technique for studying linear and quadratic perturbations on a spacetime with torsion. Besides the standard metric mode, a "torsionon" perturbation mode appears. This torsional mode will be able to propagate only in a certain kind of theories.

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Fernando Izaurieta, Eduardo Rodríguez, Omar Valdivia. 2019-01-18. Linear and Second-order Geometry Perturbations on Spacetimes with Torsion. https://doi.org/10.1140/epjc%2Fs10052-019-6852-y

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