165 citations · 2.5k across the 85 of their papers we have counts for
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Spherically Symmetric Scalar Hair for Charged Black Holes
Jeong-Pyong Hong, Motoo Suzuki, Masaki Yamada
The no-hair theorem by Mayo and Bekenstein states that there exists no non-extremal static and spherical charged black hole endowed with hair in the form of a charged scalar field…
Charged black holes in non-linear Q-clouds with O(3) symmetry
Jeong-Pyong Hong, Motoo Suzuki, Masaki Yamada
We construct charged soliton solutions around spherical charged black holes with no angular momentum in asymptotically flat spacetime. These solutions are non-linear generalization…
Constraints on non-minimal coupling from quantum cosmology
Shao-Jiang Wang, Masaki Yamada, Alexander Vilenkin
Quantum cosmology is investigated in a de Sitter minisuperspace model with a quantized scalar field non-minimally coupled to curvature. Quantum states of the scalar field must sati…
Tunneling wave function of the universe II: the backreaction problem
Alexander Vilenkin, Masaki Yamada
The tunneling wave function of the universe is calculated exactly for a de Sitter minisuperspace model with a massless conformally coupled scalar field, both by solving the Wheeler…
Tunneling wave function of the universe
Alexander Vilenkin, Masaki Yamada
The tunneling wave function of the universe is investigated in a minisuperspace framework of a de Sitter universe with a quantum scalar field, treated as a perturbation. We conside…
Compact objects as the catalysts for vacuum decays
Naritaka Oshita, Masaki Yamada, Masahide Yamaguchi
We discuss vacuum decays catalyzed by spherical and horizonless objects and show that an ultra compact object could catalyze a vacuum decay around it within the cosmological time.…
CMB spectral distortions from black holes formed by vacuum bubbles
Heling Deng, Alexander Vilenkin, Masaki Yamada
Vacuum bubbles may nucleate and expand during the cosmic inflation. When inflation ends, the bubbles run into the ambient plasma, producing strong shocks followed by underdensity w…