81 citations · 344 across the 20 of their papers we have counts for
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Model-Independent Test of Prerecombination New Physics: Measuring the Sound Horizon with Gravitational Wave Standard Sirens and the Baryon Acoustic Oscillation Angular Scale
William Giarè, Jonathan Betts, Carsten van de Bruck +1
In a broad class of cosmological models where spacetime is described by a pseudo-Riemannian manifold, photons propagate along null geodesics, and their number is conserved, upcomin…
Bouncing cosmologies in the presence of a Dirac-Born-Infeld field
Mariam Campbell, Richard Daniel, Peter K. S. Dunsby +1
We perform a detailed dynamical system analysis for the behaviour of a Dirac-Born-Infeld (DBI) field in a spatially closed Friedmann-Lemaître-Robertson-Walker (FLRW) cosmology. The…
Scalar field dark matter with time-varying equation of state
Gaspard Poulot, Elsa M. Teixeira, Carsten van de Bruck +1
We propose a new model of scalar field dark matter interacting with dark energy. Adopting a fluid description of the dark matter field in the regime of rapid oscillations, we find…
Tightening the reins on non-minimal dark sector physics: Interacting Dark Energy with dynamical and non-dynamical equation of state
William Giarè, Yuejia Zhai, Supriya Pan +3
We present a comprehensive reassessment of the state of Interacting Dark Energy (IDE) cosmology, namely models featuring a non-gravitational interaction between Dark Matter (DM) an…
Gravitational waves in a cyclic Universe: resilience through cycles and vacuum state
Mariaveronica De Angelis, Adam Smith, William Giarè +1
We present a generalised calculation for the spectrum of primordial tensor perturbations in a cyclic Universe, making no assumptions about the vacuum state of the theory and accoun…