|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'504'928
Articles rated: 2609
25 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Higher-Derivative $f(R,Box R, T)$ Theories of Gravity | | M. J. S. Houndjo
; M. E. Rodrigues
; N.S. Mazhari
; D. Momeni
; R. Myrzakulov
; | | Date: |
2 Jan 2016 | | Abstract: | In literature there is a model of modified gravity in which the matter
Lagrangian is coupled to the geometry via trace of the stress-energy momentum
tensor $T=T_{mu}^{mu}$. This type of modified gravity is called as $f(R,T)$
in which $R$ is Ricci scalar $R=R_{mu}^{mu}$. We extend manifestly this model
to include the higher derivative term $Box R$. We derived equation of motion
(EOM) for the model by starting from the basic variational principle. Later we
investigate FLRW cosmology for our model. We show that de Sitter solution is
unstable for a generic type of $f(R,Box R, T)$ model. Furthermore we
investigate an inflationary scenario based on this model. A graceful exit from
inflation is guaranteed in this type of modified gravity. | | Source: | arXiv, 1601.0196 | | 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