64 citations · 74 across the 3 of their papers we have counts for
3 papers
astro-ph.CO2026
Revisiting observational constraints on coupled exponential quintessence with energy and momentum transfers: degeneracy with massive neutrinos
Jose Beltrán Jiménez, Kiyotomo Ichiki, Xiaolin Liu +2
We investigate the impact of massive neutrinos on cosmological models in which dark energy, described by a quintessence scalar field with an exponential potential, interacts wi…
astro-ph.CO2023★ 10 cited
Is the NANOGrav detection evidence of resonant particle creation during inflation?
M. R. Gangopadhyay, V. V. Godithi, K. Ichiki +5
We show that the recently reported cosmic gravitational wave background by the NANOGrav 15-year collaboration may be the result of resonant particle creation during inflation. For…
astro-ph2006★ 64 cited
Constraints on the Evolution of the Primordial Magnetic Field from the Small-Scale Cosmic Microwave Background Angular Anisotropy
D. Yamazaki, K. Ichiki, T. Kajino +1
Recent observations of the cosmic microwave background (CMB) have extended the measured power spectrum to higher multipoles 1000, and there appears to be possible evidenc…