General constraints on Horndeski wormhole throats

Autor:	Korolev, Roman, Lobo, Francisco S. N., Sushkov, Sergey V.
Rok vydání:	2020
Předmět:	General Relativity and Quantum Cosmology Astrophysics - High Energy Astrophysical Phenomena High Energy Physics - Theory
Zdroj:	Phys. Rev. D 101, 124057 (2020)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevD.101.124057
Popis:	In this work, we consider the full Horndeski Lagrangian applied to wormhole geometries and present the full gravitational field equations. We analyse the general constraints imposed by the flaring-out conditions at the wormhole throat and consider a plethora of specific subclasses of the Horndeski Lagrangian, namely, quintessence/phantom fields, $k$-essence, scalar-tensor theories, covariant galileons, nonminimal kinetic coupling, kinetic gravity braiding, and the scalar-tensor representation of Gauss-Bonnet couplings, amongst others. The generic constraints analysed in this work serve as a consistency check of the main solutions obtained in the literature and draws out new avenues of research in considering applications of specific subclasses of the Horndeski theory to wormhole physics. Comment: 16 pages. V2: Discussion and references added; matches published version
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2004.12382 Zobrazit plný text záznamu View this record from Arxiv