Articulo
Linear and second-order geometry perturbations on spacetimes with torsion
Fecha
2019Registro en:
1150719
WOS:000464759700003
Institución
Resumen
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.