Instability of Black Holes with a Gauss–Bonnet Term

Wha Keun Ahn, Bogeun Gwak, Bum Hoon Lee, Wonwoo Lee

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

We investigate the fragmentation instability of hairy black holes in the theory with a Gauss–Bonnet (GB) term in asymptotically flat spacetime. Our approach is through the non-perturbative fragmentation instability. By this approach, we investigate whether the initial black hole can be broken into two black holes by comparing the entropy of the initial black hole with the sum of those of two fragmented black holes. The relation between the black hole instability and the GB coupling with dilaton hair are presented. We describe the phase diagrams with respect to the mass of the black hole solutions and coupling constants. We find that a perturbatively stable black hole can be unstable under fragmentation.

Original languageEnglish
Article number372
JournalEuropean Physical Journal C
Volume75
Issue number8
DOIs
StatePublished - 17 Aug 2015

Fingerprint

Dive into the research topics of 'Instability of Black Holes with a Gauss–Bonnet Term'. Together they form a unique fingerprint.

Cite this