Closer look at black hole pair creation

Andrés Anabalón, Sasha Brenner, Gaston Giribet, Luciano Montecchio

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We consider accelerated black hole horizons with and without defects. These horizons appear in the -metric solution to Einstein equations and in its generalization to the case where external fields are present. These solutions realize a variety of physical processes, from the decay of a cosmic string by a black hole pair nucleation to the creation of a black hole pair by an external electromagnetic field. Here, we show that such geometries exhibit an infinite set of symmetries in their near horizon region, generalizing in this way previous results for smooth isolated horizons. By considering the limit close to both the black hole and the acceleration horizons, we show that a sensible set of asymptotic boundary conditions gets preserved by supertranslation and superrotation transformations. By acting on the geometry with such transformations, we derive the superrotated, supertranslated version of the -metric and compute the associated conserved charges. We also consider other physical scenarios, including accelerated black holes in anti-de Sitter and binary black hole systems.

Original languageEnglish
Article number024044
JournalPhysical Review D
Issue number2
StatePublished - 15 Jul 2021
Externally publishedYes


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