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Topological Terms and the Misner String Entropy
Luca Ciambelli, Cristóbal Corral, José Figueroa +2
The method of topological renormalization in anti-de Sitter (AdS) gravity consists in adding to the action a topological term which renders it finite, defining at the same time a w…
Hairy Taub-NUT/Bolt-AdS solutions in Horndeski theory
Esteban Arratia, Cristobal Corral, Jose Figueroa +1
We present different Taub-NUT/Bolt-anti de Sitter (AdS) solutions in a shift-symmetric sector of Horndeski theory of gravity possessing nonminimal kinetic coupling of scalar fields…
Diffusion in unimodular gravity: Analytical solutions, late-time acceleration, and cosmological constraints
Cristóbal Corral, Norman Cruz, Esteban González
Unimodular gravity is an appealing approach to address the cosmological constant problem. In this scenario, the vacuum energy density of quantum fields does not gravitate and the c…