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The Perturbation of Material Density in f(R) Modified Gravity of Polynormal Exponential Form

10 pagesPublished: May 15, 2020

Abstract

In this paper, we investigate the linear perturbation of the material density of the universe in f(R) modified gravity of polynomial exponential form on the scale of distance below the cosmic horizon (sub-horizon). The results show that the model for the evolutionary aspects of the universe is slightly different from that in the standard cosmological model of ΛCDM. They can be used to show the difference between this modified gravitational model with the standard cosmological model of ΛCMD and other cosmological models. We also investigate the ration Ψ/ Φ and Geff / GN in the model and show that they are within allowable limits of experiments.

Keyphrases: cosmic hoizon, linear perturbation, modified gravity, Polynomial exponential form, the growth index of the universe

In: Tich Thien Truong, Trung Nghia Tran, Quoc Khai Le and Thanh Nha Nguyen (editors). Proceedings of International Symposium on Applied Science 2019, vol 3, pages 242--251

Links:
BibTeX entry
@inproceedings{ISAS2019:Perturbation_of_Material_Density,
  author    = {Van On Vo},
  title     = {The Perturbation of Material Density in f(R) Modified Gravity of Polynormal Exponential Form},
  booktitle = {Proceedings of International Symposium on Applied Science 2019},
  editor    = {Tich Thien Truong and Trung Nghia Tran and Quoc Khai Le and Thanh Nha Nguyen},
  series    = {Kalpa Publications in Engineering},
  volume    = {3},
  pages     = {242--251},
  year      = {2020},
  publisher = {EasyChair},
  bibsource = {EasyChair, https://easychair.org},
  issn      = {2515-1770},
  url       = {https://easychair.org/publications/paper/mM7d},
  doi       = {10.29007/xqpk}}
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