Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2012-01-09
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
RevTex4 5 pages, no figures
Scientific paper
In these comments, we clarify the problematic aspects of gravitational interaction in a weak-field limit of Kaluza-Klein models. We explain why some models meet the classical gravitational tests, while others do not. We show that variation of the total volume of the internal spaces generates the fifth force. This is the main reason of the problem. It happens for all considered models (linear with respect to the scalar curvature and non-linear f(R), with toroidal and spherical compactifications). In the case of models with toroidal compactification, we demonstrate how tension (with and without effects of non-linearity) of the gravitating source can eliminate the fifth force, resulting in agreement with the observations. It takes place for latent solitons, black strings and black branes. In the case of spherical compactification, the fifth force is replaced by the Yukawa interaction for models with the stabilized internal space. For large Yukawa masses, the effect of this interaction is negligibly small, and considered models satisfy the gravitational tests at the same level of accuracy as General Relativity.
Eingorn Maxim
Zhuk Alexander
No associations
LandOfFree
Comments on gravitational interaction in Kaluza-Klein models 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 Comments on gravitational interaction in Kaluza-Klein models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comments on gravitational interaction in Kaluza-Klein models will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-643263