89 citations · 774 across the 55 of their papers we have counts for
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gr-qc2023★ 1 cited
Greybody Factors Imprinted on Black Hole Ringdowns: an alternative to superposed quasi-normal modes
Naritaka Oshita
It is shown that the spectral amplitude of gravitational-wave (GW) ringdown of a Kerr black hole sourced by an extreme mass ratio merger can be modeled by the $\textit{greybody fac…
hep-th2023
Is the Coleman de Luccia action minimum?: AdS/CFT approach
Naritaka Oshita, Yutaro Shoji, Masahide Yamaguchi
We use the anti-de Sitter/conformal field theory (AdS/CFT) correspondence to find the least bounce action in an AdS false vacuum state, i.e., the most probable decay process of the…
hep-th2023★ 3 cited
From Entropy to Echoes: Counting the quasi-normal modes and the quantum limit of silence
Naritaka Oshita, Niayesh Afshordi
We estimate the canonical entropy of a quantum black hole by counting its quasi-normal modes. We first show that the partition function of a classical black hole, evaluated by coun…