Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes

Stuchlík, Zdeněk; Vrba, Jaroslav

doi:10.48550/arxiv.2108.09562

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Generating a Wormhole Solution By A Disformal Transformation1

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2021

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“…in the limit of l η → ∞, which has recently been the subject of intensive study [21][22][23][24][25][26][27][28].…”

Section: Generating a Wormhole Solution By A Disformal Transformationmentioning

confidence: 99%

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

Chatzifotis,

Papantonopoulos,

Vlachos

2021

Preprint

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We consider disformal transformations in a subclass of Horndeski theory in which a scalar field is kinetically coupled to 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. Contents I. Introduction 1 II. Black Hole Solution with a Scalar Field Kinetically Coupled to Einstein Tensor 2 III. Generating a wormhole solution by a disformal transformation 4 IV. Testing of the energy conditions 6 V. Evolution of scalar perturbations on the wormhole geometry 8 A. Two-Way Wormhole 9 B. One-way Wormhole 10 VI. Conclusions 11 A. Appendix 12 References 13

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“…in the limit of l η → ∞, which has recently been the subject of intensive study [21][22][23][24][25][26][27][28].…”

Section: Generating a Wormhole Solution By A Disformal Transformationmentioning

confidence: 99%

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

Chatzifotis,

Papantonopoulos,

Vlachos

2021

Preprint

View full text Add to dashboard Cite

show abstract

Epicyclic Oscillations around Simpson-Visser Regular Black Holes and Wormholes

Abstract: This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/).

Cited by 1 publication

References 48 publications

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

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

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