Asymptotic flatness and Hawking quasilocal mass

TL;DR

This paper explores the relationship between anomalies in Hawking quasilocal mass and unphysical spacetime properties, highlighting that such anomalies indicate serious physical issues in gravitating systems, especially in quantum-corrected black holes.

Contribution

It identifies a link between Hawking quasilocal mass anomalies and unphysical spacetime behaviors, emphasizing their significance beyond quantum black holes.

Findings

Anomalies correlate with unphysical spacetime features

Quantum-corrected black holes exhibit these anomalies

Anomalies signal serious physical pathologies

Abstract

We point out an association between anomalies in the Hawking quasilocal mass (or, in spherical symmetry, in its better known version, the Misner-Sharp-Hernandez mass) and unphysical properties of the spacetime geometry. While anomalous behaviors show up in certain quantum-corrected black holes, they are not unique to this context and signal serious physical pathologies of isolated gravitating systems in general.