ENERGY CONDITIONS IN f(R) GRAVITY AND BRANS–DICKE THEORIES
K. AtazadehDepartment of Physics, Shahid Beheshti University, Evin, Tehran 19839, IranA. KHALEGHIDepartment of Physics, Shahid Beheshti University, Evin, Tehran 19839, IranHamid Reza SepangiDepartment of Physics, Shahid Beheshti University, Evin, Tehran 19839, IranYaser TavakoliDepartment of Physics, Shahid Beheshti University, Evin, Tehran 19839, Iran
2009en
ABI
Annotatsiya
The equivalence between f(R) gravity and scalar–tensor theories is invoked to study the null, strong, weak and dominant energy conditions in Brans–Dicke theory. We consider the validity of the energy conditions in Brans–Dicke theory by invoking the energy conditions derived from a generic f(R) theory. The parameters involved are shown to be consistent with an accelerated expanding universe.
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