968 citations
- University of LisbonPT43 papers
- Universidade de São PauloBR37 papers
- Universidade Federal do Rio de JaneiroBR32 papers
- Institute of Mathematics and PhysicsBJ24 papers
- Universidade Federal do Espírito SantoBR23 papers
- Institute of Astrophysics and Space SciencesPT21 papers
- Instituto Federal de Educação, Ciência e Tecnologia do ParáBR20 papers
- Universidade Federal da ParaíbaBR20 papers
- Universidade Federal do CearáBR18 papers
- Université de ParakouBJ16 papers
- University of AveiroPT16 papers
- University of YorkGB16 papers
13 papers · 2 filters
Cosmological viable f(R,T) dark energy model: dynamics and stability
E. H. Baffou, A. V. Kpadonou, M. E. Rodrigues +2
In this paper we undertake the modified theory of gravity f(R,T) where R and T are the Ricci scalar and the trace of the energy momentum tensor, respectively. Imposing the conserva…
Effects of a scalar field on the thermodynamics of interuniversal entanglement
Iñaki Garay, Salvador Robles-Pérez
We consider a multiverse scenario made up of classically disconnected regions of the space-time that are, nevertheless, in a quantum entangled state. The addition of a scalar field…
Locally Rotationally Symmetric Bianchi Type-I cosmological model in gravity: from early to Dark Energy dominated universe
M. E. Rodrigues, I. G. Salako, M. J. S. Houndjo +1
We study the locally rotational symmetry Bianchi type-I dark energy model in the framework of theory of gravity, where denotes the torsion scalar. A viable cosmological…
Semiclassical states in quantum gravity: Curvature associated to a Voronoi graph
Jacobo Diaz-Polo, Iñaki Garay
The building blocks of a quantum theory of general relativity are expected to be discrete structures. Loop quantum gravity is formulated using a basis of spin networks (wave functi…
Absorption of planar massless scalar waves by Kerr black holes
Caio F. B. Macedo, Luiz C. S. Leite, Ednilton S. Oliveira +2
We consider planar massless scalar waves impinging upon a Kerr black hole, for general angles of incidence. We compute the absorption cross section via the partial wave approach, a…
Astrophysical signatures of boson stars: quasinormal modes and inspiral resonances
Caio F. B. Macedo, Paolo Pani, Vitor Cardoso +1
Compact bosonic field configurations, or boson stars, are promising dark matter candidates which have been invoked as an alternative description for the supermassive compact object…