dc.contributor.author |
Mazharimousavi, S. Habib |
|
dc.contributor.author |
Halilsoy, Mustafa |
|
dc.contributor.author |
Tahamtan, Tayebeh |
|
dc.date.accessioned |
2016-01-07T12:37:17Z |
|
dc.date.available |
2016-01-07T12:37:17Z |
|
dc.date.issued |
2011 |
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dc.identifier.citation |
“Constant curvature f(R) gravity minimally coupled with Yang – Mills field”. S. H. Mazharimousavi, M. Halilsoy, T. Tahamtan, Eur. Phys. J.C (2011), 72:1958. |
en_US |
dc.identifier.issn |
1434-6052 (online) |
|
dc.identifier.issn |
1434-6044 (print) |
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dc.identifier.other |
DOI: 10.1140/epjc/s10052-012-1958-5 |
|
dc.identifier.uri |
http://hdl.handle.net/11129/1936 |
|
dc.description |
The file in this item is the publisher version (published version) of the article. |
en_US |
dc.description.abstract |
We consider the particular class of f(R) gravities minimally coupled with Yang - Mills (YM) field in which the Ricci scalar =R_{0}= constant in all dimensions d\geq4. Even in this restricted class the spacetime has unlimited scopes determined by an equation of state of the form P_{eff}={\omega}{\rho}. Depending on the distance from the origin (or horizon of a black hole) the state function {\omega}(r) takes different values. It is observed that {\omega}\rightarrow(1/3) (the ultra relativistic case in 4 - dimensions) and {\omega}\rightarrow-1 (the cosmological constant) are the limiting values of our state function {\omega}(r) in a spacetime centered by a black hole. This suggests that having a constant {\omega} throughout spacetime around a charged black hole in f(R) gravity with constant scalar curvature is a myth. |
en_US |
dc.language.iso |
en_US |
en_US |
dc.publisher |
European Physical Journal C, Springer |
en_US |
dc.relation.ispartofseries |
Springer;Eur. Phys. J. C (2012) 72:1958 |
|
dc.subject |
general relativity |
en_US |
dc.subject |
black holes |
en_US |
dc.subject |
f(r) Gravity |
en_US |
dc.subject |
Yang-Mills field |
en_US |
dc.title |
Constant curvature f(R) gravity minimally coupled with Yang-Mills field |
en_US |
dc.type |
Article |
en_US |
dc.description.version |
Publisher Version (Published Version). |
|