Disformal Transition of a Black Hole to a Wormhole in Scalar-Tensor Horndeski Theory

2021/11/24 by Nikos Chatzifotis, Eleftherios Papantonopoulos, Christoforos Vlachos
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Black hole (networking) #Classical mechanics #Computer science #Cosmology and Gravitation Theories #Energy condition #General relativity #Geometry #Mathematical physics #Mathematics #Physics #Pulsars and Gravitational Waves Research #Scalar (mathematics) #Scalar field #Scalar–tensor theory #Tensor (intrinsic definition) #Theoretical physics #Wormhole #gr-qc #hep-th

paper · pdf · doi:10.1103/physrevd.105.064025

14 pages, 15 figures, Citations added, More references added

arxiv created 2021/11/24 · openalex publication_date 2022/03/14 · arxiv updated 2022/03/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider disformal transformations in a subclass of Horndeski theory in which a scalar field is kinetically coupled to the Einstein tensor. We apply a disformal transformation on a seed hairy black hole solution of this theory and we show that there is a transition of a black hole to a wormhole. We also show that the null energy condition is violated in the wormhole configuration and we study the stability of the wormhole solution by calculating the time evolution of scalar perturbations in this geometry.

Citations

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• Degenerate Higher-Order Scalar-Tensor (DHOST) theories
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• Ringing of the regular black-hole/wormhole transition
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