Naked Black Holes

TL;DR

This paper demonstrates the existence of nearly extremal charged black holes with small curvature invariants at the horizon, but with extreme tidal forces outside, impacting cosmic censorship and information paradox discussions.

Contribution

It introduces a class of charged black holes with small curvature invariants at the horizon yet large external tidal forces, challenging conventional black hole assumptions.

Findings

Existence of large static black holes with small curvature invariants near the horizon

Objects experience enormous tidal forces outside the horizon

Implications for cosmic censorship and black hole information puzzle

Abstract

It is shown that there are large static black holes for which all curvature invariants are small near the event horizon, yet any object which falls in experiences enormous tidal forces outside the horizon. These black holes are charged and near extremality, and exist in a wide class of theories including string theory. The implications for cosmic censorship and the black hole information puzzle are discussed.