90 citations · 136 across the 3 of their papers we have counts for
3 papers
gr-qc2018★ 90 cited
Metric-affine Gravity and Inflation
Keigo Shimada, Katsuki Aoki, Kei-ichi Maeda
We classify the metric-affine theories of gravitation, in which the metric and the connections are treated as independent variables, by use of several constraints on the connection…
hep-th2016★ 4 cited
Vainshtein mechanism in massive gravity nonlinear sigma models
Katsuki Aoki, Shuntaro Mizuno
We study the stability of the Vainshtein screening solution of the massive/bi-gravity based on the massive nonlinear sigma model as the effective action inside the Vainshtein radiu…
gr-qc2014★ 42 cited
Dark matter in ghost-free bigravity theory: From a galaxy scale to the universe
Katsuki Aoki, Kei-ichi Maeda
We study the origin of dark matter based on the ghost-free bigravity theory with twin matter fluids. The present cosmic acceleration can be explained by the existence of graviton m…