16 citations · 25 across the 5 of their papers we have counts for
5 papers
DBI scalar field cosmology in -DBI gravity
Nahomi Kan, Kiyoshi Shiraishi, Maki Takeuchi +1
We study inflationary characterictics of the universe in -DBI gravity, driven by DBI-deformed scalar fields. In this paper, we consider the evolution of the classical universe f…
Toward a simultaneous resolution of the and tensions: early dark energy and an interacting dark sector model
Mai Yashiki
The tension between the Hubble constant () inferred from the cosmic microwave background (CMB) and that measured from late-time observations, such as the local distance ladder…
Quantum BPS Cosmology
Nahomi Kan, Kiyoshi Shiraishi, Maki Takeuchi +1
There has been much discussion about the initial conditions of the early Universe in the context of quantum theory. In this paper, we construct the wave function and probability di…
Local gravity test of unified models of inflation and dark energy in gravity
Mai Yashiki, Nobuyuki Sakai, Ryo Saito
We consider gravity theories which unify inflation and dark energy models. First, from the final Planck data of the cosmic microwave background, we obtain a condition,…
Classical and quantum cosmology of -essentially modified and pure gravity
Nahomi Kan, Kiyoshi Shiraishi, Mai Yashiki
We present a gravitational action with a modified higher order term of a combination of scalar curvature and Lagrangian density of a scalar field. This type of models has been cons…