4d neutral dilatonic black holes and (4+p) dimensional nondilatonic black p-branes

TL;DR

This paper demonstrates that 4d neutral dilatonic black holes with horizon singularities cannot be viewed as nonsingular black p-branes in higher dimensions, indicating extra dimensions do not resolve their naked singularities.

Contribution

It provides a theoretical analysis showing the incompatibility of 4d neutral dilatonic black holes with nonsingular higher-dimensional black p-branes.

Findings

Extra dimensions do not eliminate naked singularities in 4d neutral dilatonic black holes.

Contrasts with the case of extreme 4d dilatonic black holes.

Nonsingular higher-dimensional interpretations are not possible for these black holes.

Abstract

It is shown that, in contrast to the case of extreme 4d dilatonic black holes, 4d neutral dilatonic black holes with horizon singularities can not be interpreted as nonsingular nondilatonic black p-branes in (4+p) dimensions, regardless of the number of extra dimensions p. That is, extra dimensions do not remove naked singularities of 4d neutral dilatonic black holes.