M
Misao Sasaki
Researcher at University of Erlangen-Nuremberg
Publications - 801
Citations - 37294
Misao Sasaki is an academic researcher from University of Erlangen-Nuremberg. The author has contributed to research in topics: Inflation (cosmology) & Scalar field. The author has an hindex of 82, co-authored 780 publications receiving 32949 citations. Previous affiliations of Misao Sasaki include Tomsk State Pedagogical University & Heidelberg University.
Papers
More filters
Journal ArticleDOI
Cosmological Perturbation Theory
Hideo Kodama,Misao Sasaki +1 more
TL;DR: The linear perturbation theory of spatially homogeneous and isotropic universes is reviewed and reformulated extensively in this article, with special attention paid to the geometrical meaning of the perturbations.
Journal ArticleDOI
The Einstein equations on the 3-brane world
Tetsuya Shiromizu,Tetsuya Shiromizu,Keiichi Maeda,Keiichi Maeda,Misao Sasaki,Misao Sasaki,Misao Sasaki +6 more
TL;DR: In this paper, the authors consider the brane world with a negative tension and derive the effective gravitational equations, which reduce to the conventional Einstein equations in the low energy limit, in which all the matter forces except gravity are confined on the 3-brane in a 5-dimensional spacetime with ${Z}_{2}$ symmetry.
Journal ArticleDOI
A General Analytic Formula for the Spectral Index of the Density Perturbations Produced during Inflation.
Misao Sasaki,Ewan D. Stewart +1 more
TL;DR: In this article, the spectrum and spectral index of the density perturbations produced during inflation were derived based on Starobinsky's spectral index, which is the same as the spectral index derived in this paper.
Journal ArticleDOI
A general proof of the conservation of the curvature perturbation
TL;DR: In this article, the cosmological curvature perturbation is defined and its behavior is considered under the assumption that the universe is smooth over a sufficiently large comoving scale.
Journal ArticleDOI
Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914
TL;DR: The abundance of PBHs required to explain the suggested lower bound on the event rate roughly coincides with the existing upper limit set by the nondetection of the cosmic microwave background spectral distortion, which implies that the proposed PBH scenario may be tested in the not-too-distant future.