Crossing of Phantom Divide in $F(R)$ Gravity

Details Crossing of Phantom Divide in $F(R)$ Gravity Crossing of Phantom Divide in $F(R)$ Gravity

2010-03-03

arxiv.org/abs/1003.0769v1

Mod.Phys.Lett.A25:900-908,2010

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 1 figure, to be published in the proceedings of the International Workshop on Dark Matter, Dark Energy and Matter-ant

Scientific paper

10.1142/S0217732310000058

An explicit model of $F(R)$ gravity with realizing a crossing of the phantom
divide is reconstructed. In particular, it is shown that the Big Rip
singularity may appear in the reconstructed model of $F(R)$ gravity. Such a Big
Rip singularity could be avoided by adding $R^2$ term or non-singular viable
$F(R)$ theory to the model because phantom behavior becomes transient.

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