Quasinormal modes of D-dimensional de Sitter spacetime

TL;DR

This paper computes exact quasinormal mode frequencies for electromagnetic, gravitational, and scalar fields in D-dimensional de Sitter spacetime, providing new insights into their stability and dynamic properties.

Contribution

It presents the first exact calculations of quasinormal frequencies for multiple fields in D-dimensional de Sitter spacetime, extending previous approximate or numerical results.

Findings

Exact quasinormal frequencies for electromagnetic and gravitational perturbations.

Comparison of scalar field modes with existing literature.

Enhanced understanding of field stability in higher-dimensional de Sitter space.

Abstract

We calculate the exact values of the quasinormal frequencies for an electromagnetic field and a gravitational perturbation moving in $D$-dimensional de Sitter spacetime ($D \geq 4$). We also study the quasinormal modes of a real massive scalar field and we compare our results with those of other references.