570 citations · 2.2k across the 42 of their papers we have counts for
43 papers
Cancellation of quantum corrections on the soft curvature perturbations
Yuichiro Tada, Takahiro Terada, Junsei Tokuda
We study the cancellation of quantum corrections on the superhorizon curvature perturbations from subhorizon physics beyond the single-clock inflation from the viewpoint of the cos…
The Detected Stochastic Gravitational Waves and Subsolar-Mass Primordial Black Holes
Keisuke Inomata, Kazunori Kohri, Takahiro Terada
Multiple pulsar timing array (PTA) collaborations recently announced the evidence of common-spectral processes caused by gravitational waves (GWs). These can be the stochastic GW b…
Axion Poltergeist
Keisuke Harigaya, Keisuke Inomata, Takahiro Terada
Rotations of axion fields in the early universe can produce dark matter and the matter-antimatter asymmetry of the universe. We point out that the rotation can generate an observab…
Dissipative Emergence of Inflation from Quasi-Cyclic Universe
Hiroki Matsui, Alexandros Papageorgiou, Fuminobu Takahashi +1
Inflationary models, especially those with plateau-type potentials, are consistent with the cosmological data, but inflation itself does not resolve the initial singularity. This s…
Dissipative Genesis of the Inflationary Universe
Hiroki Matsui, Alexandros Papageorgiou, Fuminobu Takahashi +1
We study an inflation model with a flat scalar potential supported by observations and find that slow-roll inflation can emerge after a quasi-cyclic phase of the Universe, where it…
Inflationary -Attractor Models with Singular Derivative of Potential
Kei-ichiro Kubota, Hiroki Matsui, Takahiro Terada
A generalization of inflationary -attractor models (``polynomial -attractor'') was recently proposed by Kallosh and Linde, in which the potential involves logarithmic functio…