299 citations · 413 across the 21 of their papers we have counts for
30 papers · 1 filter
Inflation driven by repulsive-like primordial black holes
Konstantinos Dialektopoulos, Theodoros Papanikolaou, Vasilios Zarikas
We review a new natural inflationary mechanism operated by repulsive-like primordial black holes (PBHs). In particular, working within the ``Swiss - Cheese" cosmological framework,…
Primordial black hole driven cosmic acceleration
Konstantinos Dialektopoulos, Theodoros Papanikolaou, Vasilios Zarikas
We propose a natural mechanism for cosmic acceleration driven by primordial black holes (PBHs) with repulsive behavior, within a ''Swiss Cheese'' cosmological framework. Considerin…
Cosmology of Cubic Poincaré Gauge gravity
Sebastian Bahamonde, Rebecca Briffa, Konstantinos Dialektopoulos +2
In this paper, we study flat FLRW cosmology for a Poincaré gauge theory containing cubic invariants that is free from ghosts in arbitrary backgrounds in the axial and vector sector…
Insights in cosmology: the relevance of the connection
Ismael Ayuso, Mariam Bouhmadi-López, Che-Yu Chen +3
We explore the role of the affine connection in gravity, a modified theory where gravity is governed by non-metricity within the symmetric teleparallel framework. Although t…
Noether Symmetries in Cosmology
Konstantinos F. Dialektopoulos, Genly Leon, Andronikos Paliathanasis
We apply the Noether symmetry analysis in -Cosmology to determine invariant functions and conservation laws for the cosmological field equations. For the FLRW bac…
Primordial black holes as cosmic expansion accelerators
Konstantinos Dialektopoulos, Theodoros Papanikolaou, Vasilios Zarikas
We propose a novel and natural mechanism for cosmic acceleration driven by primordial black holes (PBHs) exhibiting repulsive behavior. Using a new ``Swiss Cheese'' cosmological ap…