2 papers
hep-th2026
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…
astro-ph.CO2025
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…