99 citations
6 papers
Warm Inflation, Neutrinos and Dark matter: a minimal extension of the Standard Model
Miguel Levy, João G. Rosa, Luis B. Ventura
We show that warm inflation can be realized within a minimal extension of the Standard Model with three right-handed neutrinos, three complex scalars and a gauged lepton/B-L U(1) s…
Cartan connections for stochastic developments on sub-Riemannian manifolds
Ivan Beschastnyi, Karen Habermann, Alexandr Medvedev
Analogous to the characterisation of Brownian motion on a Riemannian manifold as the development of Brownian motion on a Euclidean space, we construct sub-Riemannian diffusions on…
Shadows of charged rotating black holes: Kerr-Newman versus Kerr-Sen
Sérgio Vinicius M. C. B. Xavier, Pedro V. P. Cunha, Luís C. B. Crispino +1
Celebrating the centennial of its first experimental test, the theory of General Relativity (GR) has successfully and consistently passed all subsequent tests with flying colours.…
gauged Skyrmions in dimensions
Francisco Navarro-Lerida, Eugen Radu, D. H. Tchrakian
We study the simplest gauged Skyrme models in (flat) dimensions. In the gauge decoupled limit, the model supports topologically stable solitons (Skyrmions) and…
Spinning black holes in shift-symmetric Horndeski theory
Jorge F. M. Delgado, Carlos A. R. Herdeiro, Eugen Radu
We construct spinning black holes (BHs) in shift-symmetric Horndeski theory. This is an Einstein-scalar-Gauss-Bonnet model wherein the (real) scalar field couples linearly to the G…
Einstein-Maxwell-scalar black holes: the hot, the cold and the bald
Jose Luis Blázquez-Salcedo, Carlos A. R. Herdeiro, Jutta Kunz +2
The phenomenon of spontaneous scalarisation of charged black holes (BHs) has recently motivated studies of various Einstein-Maxwell-scalar models. Within these models, different cl…