242 citations · 2.3k across the 31 of their papers we have counts for
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Axion Curvaton Model for the Gravitational Waves Observed by Pulsar Timing Arrays
Keisuke Inomata, Masahiro Kawasaki, Kyohei Mukaida +1
The stochastic gravitational wave background (SGWB) recently detected by the PTA collaborations could be the gravitational waves (GWs) induced by curvature perturbations. However,…
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…
Synchronizing the Consistency Relation
Keisuke Inomata, Hayden Lee, Wayne Hu
We study the -point function of the density contrast to quadratic order in the squeezed limit during the matter-dominated (MD) and radiation-dominated (RD) eras in synchronous g…