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16 papers · 1 filter
General Relativity with small cosmological constant from spontaneous compactification of Lovelock theory in vacuum
Fabrizio Canfora, Alex Giacomini, Ricardo Troncoso +1
It is shown that Einstein gravity in four dimensions with small cosmological constant and small extra dimensions can be obtained by spontaneous compactification of Lovelock gravity…
Lovelock black holes with a nonlinear Maxwell field
Hideki Maeda, Mokhtar Hassaine, Cristian Martinez
We derive electrically charged black hole solutions of the Einstein-Gauss-Bonnet equations with a nonlinear electrodynamics source in dimensions. The spacetimes are giv…
Simple analytic model of wormhole formation
Hideki Maeda
An explicit and simple solution representing the wormhole formation is presented. The spacetime is constructed by gluing the Minkowski and Roberts spacetimes at null hypersurfaces…
Vacuum solutions with nontrivial boundaries for the Einstein-Gauss-Bonnet theory
Gustavo Dotti, Julio Oliva, Ricardo Troncoso
The classification of certain class of static solutions for the Einstein-Gauss-Bonnet theory in vacuum is presented. The spacelike section of the class of metrics under considerati…
Fisher zeros in the Kallen-Lehmann approach to 3D Ising model
Marco Astorino, Fabrizio Canfora, Gaston Giribet
The distribution of the Fisher zeros in the Kallen-Lehmann approach to three-dimensional Ising model is studied. It is argued that the presence of a non-trivial angle (a cusp) in t…
Vacuum static compactified wormholes in eight-dimensional Lovelock theory
Fabrizio Canfora, Alex Giacomini
In this paper new exact solutions in eight dimensional Lovelock theory will be presented. These solutions are vacuum static wormhole, black hole and generalized Bertotti-Robinson s…