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4 papers · 2 filters
Criteria for resolving the cosmological singularity in Infinite Derivative Gravity around expanding backgrounds
James Edholm, Aindriú Conroy
We derive the conditions whereby null rays `defocus' within Infinite Derivative Gravity for perturbations around an (A)dS background, and show that it is therefore possible to avoi…
The spectrum of symmetric teleparallel gravity
Aindriú Conroy, Tomi Koivisto
General Relativity and its higher derivative extensions have symmetric teleparallel reformulations in terms of the non-metricity tensor within a torsion-free and flat geometry. The…
Newtonian Potential and Geodesic Completeness in Infinite Derivative Gravity
Aindriú Conroy, James Edholm
Recent study has shown that a non-singular oscillating potential, a feature of Infinite Derivative Gravity (IDG) theories, matches current experimental data better than the standar…
Quintessential Inflation with -attractors
Konstantinos Dimopoulos, Charlotte Owen
A novel approach to quintessential inflation model building is studied, within the framework of -attractors, motivated by supergravity theories. Inflationary observables are in…