Regular Article - Theoretical Physics
Cosmological reconstruction and energy bounds in gravity
Department of Mathematics, COMSATS Institute of Information Technology Lahore, Lahore, Pakistan
Accepted: 18 April 2016
Published online: 3 May 2016
We discuss the cosmological reconstruction of (where R, , and represent the Ricci scalar, the Ricci invariant, and the scalar field) corresponding to a power law and de Sitter evolution in the framework of the FRW universe model. We derive the energy conditions for this modified theory which seem to be more general and can be reduced to some well-known forms of these conditions in general relativity, [see pdf] and theories. We have presented the general constraints in terms of recent values of the snap, jerk, deceleration, and Hubble parameters. The energy bounds are analyzed for reconstructed as well as known models in this theory. Finally, the free parameters are analyzed comprehensively.
© The Author(s), 2016