New proposal for non-linear ghost-free massive F(R) gravity: Cosmic acceleration and Hamiltonian analysis
| Authors | |
|---|---|
| Year of publication | 2013 |
| Type | Article in Periodical |
| Magazine / Source | Physics Letters B |
| MU Faculty or unit | |
| Citation | |
| Doi | http://dx.doi.org/10.1016/j.physletb.2013.10.003 |
| Field | Theoretical physics |
| Keywords | Cosmology;Hamiltonian Formalism |
| Description | We propose new version of massive F(R) gravity which is natural generalization of convenient massive ghost-free gravity. Its Hamiltonian formulation in scalar-tensor frame is developed. We show that such F(R) theory is ghost-free. The cosmological evolution of such theory is investigated. Despite the strong Bianchi identity constraint the possibility of cosmic acceleration (especially, in the presence of cold dark matter) is established. Ghost-free massive F(R,T) gravity is also proposed. |
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