87 citations · 561 across the 20 of their papers we have counts for
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Pulsar timing residual induced by ultralight vector dark matter
Kimihiro Nomura, Asuka Ito, Jiro Soda
We study the ultralight vector dark matter with a mass around . The vector field oscillating coherently on galactic scales induces oscillations of the spacet…
Accelerating Universe with a stable extra dimension in cuscuton gravity
Asuka Ito, Yuki Sakakihara, Jiro Soda
We study Kaluza-Klein cosmology in cuscuton gravity and find an exact solution describing an accelerating 4-dimensional universe with a stable extra dimension. A cuscuton which is…
Probing GHz Gravitational Waves with Graviton-magnon Resonance
Asuka Ito, Tomonori Ikeda, Kentaro Miuchi +1
A novel method for extending frequency frontier in gravitational wave observations is proposed. It is shown that gravitational waves can excite a magnon. Thus, gravitational waves…
Dressed Power-law Inflation with Cuscuton
Asuka Ito, Aya Iyonaga, Suro Kim +1
We study dressed inflation with a cuscuton and find a novel exact power-law solution. It is well known that the conventional power-law inflation is inconsistent with the Planck dat…