Quasinormal modes of black holes in f(Q) gravity

Dhruba Jyoti Gogoi, Ali Övgün, M. Koussour

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


In this work, we have studied the quasinormal modes of a black hole in a model of the type f(Q)=∑nan(Q-Q0)n in f(Q) gravity by using a recently introduced method known as Bernstein spectral method and confirmed the validity of the method with the help of well known Padé averaged higher order WKB approximation method. Here we have considered scalar perturbation and electromagnetic perturbation in the black hole spacetime and obtained the corresponding quasinormal modes. We see that for a non-vanishing nonmetricity scalar Q , quasinormal frequencies in scalar perturbation are greater than those in electromagnetic perturbation scenarios. On the other hand, the damping rate of gravitational waves is higher for electromagnetic perturbation. To confirm the quasinormal mode behaviour, we have also investigated the time domain profiles for both types of perturbations.

Original languageEnglish
Article number700
JournalEuropean Physical Journal C
Issue number8
StatePublished - Aug 2023
Externally publishedYes


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