63 citations · 973 across the 55 of their papers we have counts for
57 papers
Inhomogeneous Cosmologies with Bumpy Structure from Superfluid Pionic Vortices and the propagation of electromagnetic field
Fabrizio Canfora, Alex Giacomini, Nikolaos Dimakis +1
In this work we introduce exact cosmological solutions in General Relativity in (3+1) dimensions which take into account both the usual fluid component as well as a superfluid comp…
Compactification of Anisotropies in Einstein-Scalar-Gauss-Bonnet Cosmology
Alex Giacomini, Andronikos Paliathanasis, Alexey Toporensky
We investigate the evolution of anisotropies in Einstein-Gauss-Bonnet theory with a scalar field coupled to the Gauss-Bonnet term. Specifically, we examine the simplest scenario in…
Relativistic stars in -gravity: Exact analytic solution for the power-law case
Nikolaos Dimakis, Alex Giacomini, Andronikos Paliathanasis +1
We investigate static spherically symmetric spacetimes within the framework of symmetric teleparallel gravity in order to describe relativistic stars. We adopt a specific an…
Spontaneous symmetry breaking as a result of extra dimensions compactification
Dmitry Chirkov, Alex Giacomini, Alexey Toporensky +1
We consider dynamics of a scalar field in compactification scenario of Einstein-Gauss-Bonnet cosmology. It is shown that if the field is non-minimally coupled to curvature, its asy…
Mapping Solutions in Nonmetricity Gravity: Investigating Cosmological Dynamics in Conformal Equivalent Theories
Nikolaos Dimakis, Kevin Duffy, Alex Giacomini +3
We investigate the impact of conformal transformations on the physical properties of solution trajectories in nonmetricity gravity. Specifically, we explore the phase-space and rec…
Solitonic self-sustained charge and energy transport on the superconducting cylinder
Fabrizio Canfora, Alex Giacomini, Nicolás Grandi +2
We present an exact time-dependent solution for a charged scalar field on a two-dimensional cylinder, that can be interpreted as representing a long-standing excitation on a -wa…