165 citations · 1.9k across the 61 of their papers we have counts for
61 papers
Baryon number freeze-out in the Standard Model, precisely
Cristina Benso, Dietrich Bödeker, Kohei Kamada +4
Weak sphaleron transitions turn a lepton asymmetry of the Standard Model plasma in the early Universe into a baryon asymmetry, conserving baryon-minus-lepton number and its i…
False vacuum decay catalyzed by black hole in a heat bath
Bowen Hu, Kohei Kamada, Andrey Shkerin
We study false vacuum decay catalyzed by black holes. We consider a scalar field model with unstable potential in the background of a dilaton black hole in two dimensions. The mode…
New comprehensive description of the scaling evolution of the cosmological magneto-hydrodynamic system
Fumio Uchida, Motoko Fujiwara, Kohei Kamada +1
We study the evolution of primordial magnetic fields until the recombination epoch, which is constrained by the conservation of magnetic helicity density if they are maximally heli…
Geometry and unitarity of scalar fields coupled to gravity
Minxi He, Kohei Kamada, Kyohei Mukaida
We formulate scalar field theories coupled non-conformally to gravity in a manifestly frame-independent fashion. Physical quantities such as the matrix should be invariant unde…
Quantum Corrections to Higgs Inflation in Einstein-Cartan Gravity
Minxi He, Kohei Kamada, Kyohei Mukaida
This paper studies the quantum corrections to the Higgs inflation model in the context of the Einstein-Cartan (E-C) gravity in the large- limit with being the number of re…
Reheating process in the inflationary model with the baryogenesis scenario
Hyun Jeong, Kohei Kamada, Alexei A. Starobinsky +1
Post-inflationary evolution and (re)heating of the viable inflationary model, the one, is made more realistic by including the leptogenesis scenario into it. For this purpose…