224 citations · 229 across the 2 of their papers we have counts for
2 papers
hep-th2015★ 5 cited
Suppressing the primordial tensor amplitude without changing the scalar sector in quadratic curvature gravity
Kohji Yajima, Tsutomu Kobayashi
We address the question of how one can modify the inflationary tensor spectrum without changing at all the successful predictions on the curvature perturbation. We show that this i…
gr-qc2012★ 224 cited
Can we distinguish between black holes and wormholes by their Einstein-ring systems?
Naoki Tsukamoto, Tomohiro Harada, Kohji Yajima
For the last decade, the gravitational lensing in the strong gravitational field has been studied eagerly. It is well known that, for the lensing by a black hole, infinite number o…