181 citations · 846 across the 29 of their papers we have counts for
29 papers
Viable massive gravity without nonlinear screening
Yusuke Manita, Sirachak Panpanich, Rampei Kimura
We study nonlinear effects of perturbations around a cosmological background in projected massive gravity, which admits self-accelerating solutions in an open FLRW universe. Using…
Cosmological gravity probes: connecting recent theoretical developments to forthcoming observations
Shun Arai, Katsuki Aoki, Yuji Chinone +20
Since the discovery of the accelerated expansion of the present Universe, significant theoretical developments have been made in the area of modified gravity. In the meantime, cosm…
Consistency of matter coupling in modified gravity
Kazufumi Takahashi, Rampei Kimura, Hayato Motohashi
Matter coupling in modified gravity theories is a nontrivial issue when the gravitational Lagrangian possesses a degeneracy structure to avoid the problem of the Ostrogradsky ghost…
Reconstruction of Power Spectrum of Primordial Curvature Perturbations on small scales from Primordial Black Hole Binaries scenario of LIGO/VIRGO detection
Xinpeng Wang, Ying-li Zhang, Rampei Kimura +1
As a candidate bound for the Binary Black Hole (BBH) merger events detected by LIGO/Virgo, Primordial Black Holes (PBHs) provide a useful tool to investigate the primordial curvatu…
Linear growth of structure in projected massive gravity
Yusuke Manita, Rampei Kimura
In the present paper, we investigate the linear growth of matter fluctuations based on a concrete model of the projected massive gravity, which is free of the Boulware-Deser ghost…
Vainshtein Mechanism in Generalised Massive Gravity
A. Emir Gumrukcuoglu, Rampei Kimura, Michael Kenna-Allison +1
We present a non-linear analysis of perturbations around cosmological solutions in Generalised Massive gravity. This Lorentz invariant theory is an extension of de Rham, Gabadadze,…