532 citations · 944 across the 8 of their papers we have counts for
7 papers · 1 filter
Towards distinguishing variants of non-minimal inflation
Tomo Takahashi, Tommi Tenkanen
We study models of inflation where the scalar field that drives inflation is coupled non-minimally to gravity via , or where the gravity sector is enlarged by an …
Hidden Inflaton Dark Matter
Juan P. Beltrán Almeida, Nicolás Bernal, Javier Rubio +1
If cosmic inflation was driven by an electrically neutral scalar field stable on cosmological time scales, the field necessarily constitutes all or part of dark matter (DM). We stu…
Scalar singlet dark matter in non-standard cosmologies
Nicolás Bernal, Catarina Cosme, Tommi Tenkanen +1
We study production of dark matter (DM) in models with a non-standard expansion history. We consider both freeze-out and freeze-in mechanisms for producing the observed DM abundanc…
Attractor Behaviour in Multifield Inflation
Pedro Carrilho, David Mulryne, John Ronayne +1
We study multifield inflation in scenarios where the fields are coupled non-minimally to gravity via , where are coupling constants, the fields…
Primordial Black Hole Formation During Slow Reheating After Inflation
Bernard Carr, Konstantinos Dimopoulos, Charlotte Owen +1
We study the formation of primordial black holes (PBHs) in the early Universe during a period of slow reheating after inflation. We demonstrate how the PBH formation mechanism may…
Phenomenology of Self-Interacting Dark Matter in a Matter-Dominated Universe
Nicolás Bernal, Catarina Cosme, Tommi Tenkanen
We study production of self-interacting dark matter (DM) during an early matter-dominated phase. As a benchmark scenario, we consider a model where the DM consists of singlet scala…