2 papers
astro-ph.CO2025
The poltergeist mechanism -- Enhancement of scalar-induced gravitational waves with early matter-dominated era
Keisuke Inomata, Kazunori Kohri, Takahiro Terada
Gravitational waves induced by primordial density perturbations provide a powerful probe of the Universe's thermal history, which may include an early matter-dominated (eMD) era pr…
hep-ph2025
Anisotropic Gravitational Waves from Anisotropic Axion Rotation
Arushi Bodas, Keisuke Harigaya, Keisuke Inomata +2
Gravitational waves (GWs) provide a powerful probe of the early universe due to their ability to free-stream across cosmic history. We study GW production in a compelling scenario…