5 citations · 10 across the 9 of their papers we have counts for
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The First Law and Weak Cosmic Censorship for de Sitter Black Holes
Daisuke Yoshida, Kaho Yoshimura
We apply Iyer-Wald's covariant phase space formalism to asymptotically de Sitter spacetimes and establish the thermodynamic first law, expressed in terms of the Abbott-Deser mass.…
Removing naked singularities in static axially symmetric spacetimes by patching with the flat spacetimes
Daiki Saito, Daisuke Yoshida
We investigate static, axially symmetric spacetimes without naked singularities that are constructed by patching Weyl class spacetimes with the flat spacetimes. Once the exterior g…
Loosely trapped surface for slowly rotating black hole
Keisuke Izumi, Tetsuya Shiromizu, Daisuke Yoshida +2
We construct the marginal loosely trapped surface (marginal LTS) for the Kerr spacetime with a small Kerr parameter perturbatively, where the LTS condition is saturated. An LTS is…
Cutoff Scale of Quadratic Gravity from Quantum Focusing Conjecture
Takamasa Kanai, Kengo Maeda, Toshifumi Noumi +1
We derive the cutoff length scale of the quadratic gravity in dimensional spacetime by demanding that the quantum focusing conjecture for the smeared quantum expansion h…
Gedanken Experiments to Destroy a Black Hole by a Test Particle: Multiply Charged Black Hole with Higher Derivative Corrections
Keisuke Izumi, Toshifumi Noumi, Daisuke Yoshida
We investigate a gedanken experiment to destroy an extremally charged black hole by dropping a test particle, provided that there are multiple gauge fields coupled with each…