Crossing of Phantom Divide in F(R) Gravity
Bamba, Kazuharu · Geng, Chao-Qiang · Nojiri, Shin'ichi · Odintsov, Sergei D.
High Energy Physics - Theory
Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
الأصل · EN
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 R² term or non-singular viable F(R) theory to the model because phantom behavior becomes transient.
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