Echoes from charged black holes influenced by quintessence

TL;DR

This paper studies how quintessence affects the effective potential and echoes of charged black holes, revealing potential transitions in the potential structure and the disappearance of high-frequency echoes as quintessence strength varies.

Contribution

It introduces the influence of quintessence on black hole potential structures and echo phenomena, highlighting the transition from single to double peaks and echo vanishment.

Findings

Quintessence can change the black hole potential from single to double peak.

Strong quintessence leads to the sudden disappearance of high-frequency echoes.

The potential structure significantly impacts the detectability of black hole echoes.

Abstract

In this paper, we investigate the effective potential and echoes from the dyonic black hole with quintessence. For a dyonic black hole, the quasi-topological electromagnetism provides proper matter energy-momentum tensor to curve the spacetime, and quintessence strengthens this force. We find that when the effect of quintessence becomes stronger, the black hole potential transforms between single-peak and double-peak, which will influence the existence of black hole echoes. In particular, we find that observer will receive a sudden vanishment of high-frequency echoes when quintessence remains a relatively strong effect.