86 citations · 400 across the 13 of their papers we have counts for
4 papers · 1 filter
Big Bang Nucleosynthesis Constraint on Baryonic Isocurvature Perturbations
Keisuke Inomata, Masahiro Kawasaki, Alexander Kusenko +1
We study the effect of large baryonic isocurvature perturbations on the abundance of deuterium (D) synthesized in big bang nucleosynthesis (BBN). We found that large baryonic isocu…
Singularity phenomena in viable f(R) gravity
Chung-Chi Lee, Chao-Qiang Geng, Louis Yang
The curvature singularity in viable f(R) gravity models is examined when the background density is dense. This singularity could be eliminated by adding the term in the Lag…
Gravitational Waves in Viable f(R) Models
Louis Yang, Chung-Chi Lee, Chao-Qiang Geng
We study gravitational waves in viable theories under a non-zero background curvature. In general, an theory contains an extra scalar degree of freedom corresponding…
Observational Constraints on Exponential Gravity
Louis Yang, Chung-Chi Lee, Ling-Wei Luo +1
We study the observational constraints on the exponential gravity model of f(R)=-beta*Rs(1-e^(-R/Rs)). We use the latest observational data including Supernova Cosmology Project (S…