39 citations · 91 across the 4 of their papers we have counts for
4 papers
Impact of multiple modes on the evolution of self-interacting axion condensate around rotating black holes
Hidetoshi Omiya, Takuya Takahashi, Takahiro Tanaka +1
Ultra-light particles, such as axions, form a macroscopic condensate around a highly spinning black hole by the superradiant instability. Due to its macroscopic nature, the condens…
Adiabatic evolution of the self-interacting axion field around rotating black holes
Hidetoshi Omiya, Takuya Takahashi, Takahiro Tanaka
Ultra light axion fields, motivated by the string theory, form a large condensate (axion cloud) around rotating black holes through superradiant instability. Several effects due to…
Axion cloud evaporation during inspiral of black hole binaries -- the effects of backreaction and radiation
Takuya Takahashi, Hidetoshi Omiya, Takahiro Tanaka
Ultralight scalar fields such as axions can form clouds around rotating black holes (BHs) by the superradiant instability. It is important to consider the evolution of clouds assoc…
Sliding possibility of the Julia sets
Hiromichi Nakayama, Takuya Takahashi
A. Sannami constructed an example of the differentiable Cantor set embedded in the real line whose difference set has a positive measure. In this paper, we generalize the definitio…