|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Reconstruction of $f(R)$ gravity models for an accelerated universe using Raychaudhuri equation | | Shibendu Gupta Choudhury
; Ananda Dasgupta
; Narayan Banerjee
; | | Date: |
12 Mar 2019 | | Abstract: | A new strategy for the reconstruction of $f(R)$ gravity models have been
attempted using Raychaudhuri equation. Two examples, one for an eternally
accelerating universe and the other for one that mimics a ${Lambda}$CDM
expansion history have been worked out. For both the cases, the relevant
$f=f(R)$ could be found out analytically. In the first case, $f(R)$ is found to
be a combination of power-law terms and in the expression for the second case
involves hypergeometric functions. The evolution history of the universe, given
as specific values of the kinematical quantities like the jerk or the
deceleration parameter, serve as the input. It is found that the corresponding
$f(R)$ gravity models, in both the examples, are not viable options. | | Source: | arXiv, 1903.4775 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER