1.1k citations · 1.8k across the 13 of their papers we have counts for
13 papers
On the covariance of teleparallel gravity theories
Alexey Golovnev, Tomi Koivisto, Marit Sandstad
The basics of teleparallel gravity and its extensions are reviewed with particular emphasis on the problem of Lorentz-breaking choice of connection in pure-tetrad versions of the t…
Uncertainties in primordial black-hole constraints on the primordial power spectrum
Yashar Akrami, Florian Kuhnel, Marit Sandstad
The existence (and abundance) of primordial black holes (PBHs) is governed by the power spectrum of primordial perturbations generated during inflation. So far no PBHs have been ob…
Primordial Black Holes as Dark Matter
Bernard Carr, Florian Kuhnel, Marit Sandstad
The possibility that the dark matter comprises primordial black holes (PBHs) is considered, with particular emphasis on the currently allowed mass windows at - $10^{17}\,…
On Ellipsoidal Collapse and Primordial Black-Hole Formation
Florian Kuhnel, Marit Sandstad
We reinvestigate gravitational ellipsoidal collapse with special focus on its impact on primordial black-hole formation. For a generic model we demonstrate that the abundance and e…
Effects of Critical Collapse on Primordial Black-Hole Mass Spectra
Florian Kuhnel, Cornelius Rampf, Marit Sandstad
Certain inflationary models as well as realisations of phase transitions in the early Universe predict the formation of primordial black holes. For most mass ranges, the fraction o…
Effectively nonlocal metric-affine gravity
Alexey Golovnev, Tomi Koivisto, Marit Sandstad
In metric-affine theories of gravity such as the C-theories, the spacetime connection is associated to a metric that is nontrivially related to the physical metric. In this article…