MG13 - Talk detail |
Participant |
Ghalee, Amir | |||||||
Institution |
Tafresh university - Pasdaran Street - Tafresh - Markazi - Iran | |||||||
Session |
AT4 |
Accepted |
Yes |
Order |
99 |
Time |
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Talk |
Poster abstract |
Title |
The phase-space of generalized Gauss-Bonnet dark energy | |||||
Co-authors | Masoud Alimohammadi | |||||||
Abstract |
The generalized Gauss-Bonnet theory, introduced by Lagrangian F(R,G), has been considered as a general modified gravity for explanation of the dark energy. G is the Gauss-Bonnet invariant. For this model, we seek the situations under which the late-time behavior of the theory is the de-Sitter space-time. This is done by studying the two dimensional phase space of this theory, i.e. the R-H plane. By obtaining the conditions under which the de-Sitter space-time is the stable attractor of this theory, several aspects of this problem have been investigated. It has been shown that there exist at least two classes of stable attractors : the singularities of the F(R,G), and the cases in which the model has a critical curve, instead of critical points. This curve is R=12H^2 in R-H plane |
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