Scalar-tensor representation of $f(R)$ gravity and Birkhoff's theorem

Details Scalar-tensor representation of $f(R)$ gravity and Birkhoff's theorem Scalar-tensor representation of $f(R)$ gravity and Birkhoff's theorem

2011-07-05

arxiv.org/abs/1107.0948v3

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages. Version to be published in Annalen der Physik

Scientific paper

Birkhoff's theorem is discussed in the frame of f(R) gravity by using its scalar-tensor representation. Modified gravity has become very popular at recent times as it is able to reproduce the unification of inflation and late-time acceleration with no need of a dark energy component or an inflaton field. Here, another aspect of modified f(R) gravity is studied, specifically the range of validity of Birkhoff's theorem, compared with another alternative to General Relativity, the well known Brans-Dicke theory. As a novelty, here both theories are studied by using a conformal transformation and writing the actions in the Einstein frame, where spherically symmetric solutions are studied by using perturbation techniques. The differences between both theories are analyzed as well as the validity of the theorem within the Jordan and Einstein frames, where interesting results are obtained.

Affiliated with

Also associated with

No associations

Rating

Scalar-tensor representation of $f(R)$ gravity and Birkhoff's theorem does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Scalar-tensor representation of $f(R)$ gravity and Birkhoff's theorem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scalar-tensor representation of $f(R)$ gravity and Birkhoff's theorem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-478023