https://doi.org/10.1140/epjc/s10052-019-6613-y
Regular Article - Theoretical Physics
Matter power spectra in viable f(R) gravity models with dynamical background
1
Chongqing University of Posts and Telecommunications, Chongqing, 400065, China
2
Department of Physics, National Tsing Hua University and National Center for Theoretical Sciences, Hsinchu, 300, Taiwan
3
DAMTP, Centre for Mathematical Sciences, University of Cambridge, Wilberforce Road, Cambridge, CB3 0WA, UK
4
Synergetic Innovation Center for Quantum Effects and Applications and Department of Physics, Hunan Normal University, Changsha, 410081, Hunan, China
* e-mail: hwyu@hunnu.edu.cn
Received:
26
July
2018
Accepted:
20
January
2019
Published online:
30
January
2019
We study the matter power spectra in the viable f(R) gravity models with the dynamical background evolution and linear perturbation theory by using the CosmoMC package. We show that these viable f(R) models generally shorten the age of the universe and suppress the matter density fluctuation. We examine the allowed ranges of the model parameters and the constraints of the cosmological variables from the current observational data, and find that the dynamical evolution of 
plays an important role to constrain the neutrino masses.
© The Author(s), 2019
