Fermion Scattering off Dilatonic Black Holes

TL;DR

This paper investigates how massless fermions scatter off magnetically charged dilatonic black holes, revealing a violation of unitarity where particles can seemingly vanish into the black hole, raising questions about information loss.

Contribution

It demonstrates that fermion scattering off dilatonic black holes leads to unitarity violation, highlighting potential issues with information preservation in such scenarios.

Findings

Violation of unitarity in fermion scattering

Particles can disappear into black holes with their information

Implications for black hole information paradox

Abstract

The scattering of massless fermions off magnetically charged dilatonic black holes is reconsidered and a violation of unitarity is found. Even for a single species of fermion it is possible for a particle to disappear into the black hole with its information content.