De Sitter-Invariant Black Holes

TL;DR

This paper explores black holes within a de Sitter-invariant gravity framework, revealing unique horizons and potential links to cosmic evolution, with implications for understanding dark energy and recent cosmological observations.

Contribution

It introduces a de Sitter-invariant approach to black holes, highlighting their additional horizons and potential cosmological connections, which differ from traditional Poincaré-invariant models.

Findings

Black holes possess both event and cosmic horizons.

The model links black hole dynamics to universe evolution.

Implications for cosmology and dark energy are discussed.

Abstract

In the de Sitter-invariant approach to gravitation, all solutions to the gravitational field equations are spacetimes that reduce locally to de Sitter. Consequently, besides including an event horizon, the de Sitter-invariant black hole also has a cosmic horizon. Accordingly, it can lodge ordinary and dark energies. Owing to this additional structure concerning Poincar\'e-invariant general relativity, such a black hole can establish a link between the black hole dynamics and the universe's evolution. Possible implications for cosmology are discussed, and a comparison with recent observations indicating the existence of a cosmological coupling of black holes is presented.