Einstein vs Hawking: Black hole binaries and cosmological expansion

TL;DR

This paper explores the interplay between classical general relativity and Hawking evaporation in black hole binaries and cosmological settings, highlighting complex behaviors in these competing regimes.

Contribution

It introduces a comparative analysis of black hole binary dynamics and cosmological evolution considering Hawking radiation effects, a novel approach in these contexts.

Findings

Identification of non-trivial features in black hole binary evolution

Insights into cosmological dynamics with black hole radiation

Comparison between classical and quantum effects in gravitational systems

Abstract

This note aims at investigating two different situations where the classical general relativistic dynamics competes with the evolution driven by Hawking evaporation. We focus, in particular, on binary systems of black holes emitting gravitational waves and gravitons, and on the cosmological evolution when black holes are immersed in their own radiation bath. Several non-trivial features are underlined in both cases.