# Strong Cosmic Censorship in higher-dimensional Reissner-Nordstr\"{o}m-de Sitter spacetime

## TL;DR

This paper investigates the validity of Strong Cosmic Censorship in higher-dimensional Reissner-Nordström-de Sitter black holes, finding violations near extremality similar to the 4D case, and explores how dimensionality influences this phenomenon.

## Contribution

It extends the analysis of scalar perturbations and Strong Cosmic Censorship violations from 4D to higher dimensions, specifically 5 and 6 dimensions.

## Key findings

- Strong Cosmic Censorship is violated near extremality in 5 and 6 dimensions.
- Dimensionality influences the extent of violation of the hypothesis.
- Violations observed are consistent with previous 4D results.

## Abstract

It was recently shown that Strong Cosmic Censorship might be violated for near-extremally-charged black holes in 4-dimensional de Sitter space under scalar perturbations. Here, we extend the study of neutral massless scalar perturbations in higher dimensions and discuss the dimensional influence on the validity of Strong Cosmic Censorship hypothesis. By giving an elaborate description of neutral massless scalar perturbations of Reissner-Nordstr\"{o}m-de Sitter black holes in $d=4,5$ and $6$ dimensions we conclude that Strong Cosmic Censorship is violated near extremality.