We propose a new way of probing the nonthermal origin of baryon asymmetry of the
Universe (BAU) and dark matter (DM) from evaporating primordial black holes (PBHs) via …

We show, within the single-field inflationary paradigm, that a linear non-minimal interaction ξ
MP ϕ R between the inflaton field ϕ and the Ricci scalar R can result in successful inflation …

Dark matter may only interact with the visible sector efficiently at energy scales above the
inflaton mass, such as the Planck scale or the grand unification scale. In such a scenario, the …

Ultralight dark matter simulations predict condensates with short-range correlation, known
as solitons or boson stars, at the centers of dark matter halos. This paper investigates the …

We propose a scenario where dark matter (DM) with a wide mass range from a few keV to
PeV can be produced solely from evaporating primordial black holes (PBH), while being …

We study three astrophysical/cosmological consequences of nonminimal couplings to
gravity in wavelike vector dark matter. In the nonrelativistic limit, the nonminimal coupling …

We construct a theory of gravity in which a propagating massive vector field arises from a
quadratic curvature invariant. The Einstein-Cartan formulation and a partial suppression of …

If coupled feebly to the Standard Model bath, dark matter can evade the severe constraints
from the direct search experiments. At the same time, such interactions help produce dark …

We examine a scenario for freeze-in production of dark matter, which occurs due to the large
thermal correction to the mass of a decaying mediator particle present in the thermal bath of …

Dark matter and inflation are two key elements to understand the origin of cosmic structures
in modern cosmology, and yet their exact physical models remain largely uncertain. The …