Nontrivial Minkowski backgrounds in f (T) gravity

Authors

Alexey Golovnev, Centre for Theoretical Physics, British University in Egypt, El Sherouk City, Cairo Governorate, 11837, Egypt
María José Guzmán, Universidad de La Serena

Document Type

Article

Publication Date

Winter 2-3-2021

Abstract

Boosted and rotated tetrad backgrounds for the Minkowski space are studied in f(T) gravity. We perform Lorentzian perturbations at first order around nontrivial backgrounds and show that some Lorentz modes can exhibit nontrivial dynamics and can propagate in time. This remarkable feature gives evidence of additional mode(s) in the Lorentzian sector which have no precedent in Lorentz-violating modified gravities; however, they can cast doubts onto even theoretical viability of these models. © 2021 American Physical Society.

Recommended Citation

Golovnev, Alexey and Guzmán, María José, "Nontrivial Minkowski backgrounds in f (T) gravity" (2021). Centre for Theoretical Physics. 236.
https://buescholar.bue.edu.eg/centre_theoretical_physics/236