Athanasios Bakopoulos
University of Ioannina
24 Papers
35 Citations
Athanasios Bakopoulos is an academic researcher from University of Ioannina. The author has contributed to research in topics: Scalar field & Scalar (mathematics). The author has an hindex of 8, co-authored 19 publications.
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Papers
Evasion of No-Hair Theorems and Novel Black-Hole Solutions in Gauss-Bonnet Theories.
TL;DR: It is demonstrated that black-hole solutions appear as a generic feature of this general Einstein-scalar-Gauss-Bonnet theory since a regular horizon and an asymptotically flat solution may be easily constructed under mild assumptions for f(ϕ).
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Black-hole solutions with scalar hair in Einstein-scalar-Gauss-Bonnet theories
TL;DR: In this paper, the existence of regular black-hole solutions with scalar hair was investigated in the context of the Einstein-scalar-Gauss-Bonnet theory, with a general coupling function between the scalar field and the quadratic Gauss Bonnet term.
253
Novel Black-Hole Solutions in Einstein-Scalar-Gauss-Bonnet Theories with a Cosmological Constant
TL;DR: In this paper, the authors consider the Gauss-Bonnet theory in the presence of a cosmological constant and look for novel, regular black-hole solutions with a nontrivial scalar hair.
118
Novel Einstein–scalar-Gauss-Bonnet wormholes without exotic matter
TL;DR: In this article, novel wormholes are obtained in the Einstein-scalar-Gauss-Bonnet theory for several coupling functions, and the domain of existence is fully mapped out for various forms of the coupling function.
99
Large and ultracompact Gauss-Bonnet black holes with a self-interacting scalar field
TL;DR: In this paper, the authors consider the case where a negative cosmological constant is replaced by a more realistic, negative scalar-field potential, and obtain asymptotically flat, regular black-hole solutions with a nontrivial scalar field which naturally dies out at large distances.
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