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- University of OxfordGB52 papers
- Centre National de la Recherche ScientifiqueFR50 papers
- University of SussexGB42 papers
- University of California, BerkeleyUS39 papers
- Goddard Space Flight CenterUS38 papers
- The University of Texas at AustinUS32 papers
- University of ManchesterGB32 papers
- Rochester Institute of TechnologyUS31 papers
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85 papers · 1 filter
Analytical CDM dynamics
Pierros Ntelis, Jackson Levi Said
We develop a novel analytical dynamical analysis to derive precise energy density ratio evolutions for the CDM and CDM models, comparing them to the standard CDM model…
Growth factor in teleparallel Gauss-Bonnet gravity
Shivam Kumar Mishra, Jackson Levi Said, B. Mishra
Teleparallel gravity offers a competing geometric framework on which to build cosmological models. The Gauss-Bonnet invariant captures key aspects of the underlying geometry that h…
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…
Gauge invariant perturbations of Cosmology
Shivam Kumar Mishra, Jackson Levi Said, B. Mishra
The Gauss-Bonnet invariant connects foundational aspects of geometry with physical phenomena in a variety of ways. Teleparallel gravity offers a novel direction in which to use the…
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…
Propagating Gravitational Waves in Teleparallel Gauss-Bonnet Gravity
Shivam Kumar Mishra, Jackson Levi Said, B. Mishra
Gravitational waves offer a key insight into the viability of classes of gravitational theories beyond general relativity. The observational constraints on their speed of propagati…