Phantom Energy Accretion onto Black Holes in Cyclic Universe

TL;DR

This paper investigates the fate of black holes in cyclic universes with phantom energy, finding that black holes persist until Hawking evaporation prevents cosmological issues, challenging previous assumptions about their destruction.

Contribution

It introduces a detailed analysis of phantom energy accretion onto black holes in cyclic cosmology, showing black holes survive until evaporation rather than being torn apart.

Findings

Black holes do not disappear before the phantom turnaround.

Remanent black holes are eliminated by Hawking evaporation.

Black holes do not pose problems in cyclic universes due to evaporation.

Abstract

Black holes pose a serious problem in the cyclic or oscillating cosmology. It is speculated that, in the cyclic universe with phantom turnarounds, black holes will be torn apart by the phantom energy before turnaround before they can create any problems. In this paper, using the mechanism of the phantom accretion onto black holes, we find that black holes do not disappear before the phantom turnaround. But the remanent black holes will not cause any problems due to the Hawking evaporation.