Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-11-09
Physics
High Energy Physics
High Energy Physics - Theory
New result about equivalence principle added, improved discussion and typos corrected. Version to appear in Phys. Lett. B
Scientific paper
10.1016/j.physletb.2011.12.044
We studied the low energy motion of particles in the general covariant version of Horava-Lifshitz gravity proposed by Horava and Melby-Thompson. Using a scalar field coupled to gravity according to the minimal substitution recipe proposed by da Silva and taking the geometrical optics limit, we could write an effective relativistic metric for a general solution. As a result, we discovered that the equivalence principle is not in general recovered at low energies, unless the spatial Laplacian of A vanishes. Finally, we analyzed the motion on the spherical symmetric solution proposed by Horava and Melby-Thompson, where we could find its effective line element and compute spin-0 geodesics. Using standard methods we have shown that such an effective metric cannot reproduce Newton's gravity law even in the weak gravitational field approximation.
Abdalla Elcio
da Silva Marco Antonio Alves
No associations
LandOfFree
On the motion of particles in covariant Horava-Lifshitz gravity and the meaning of the A-field 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 On the motion of particles in covariant Horava-Lifshitz gravity and the meaning of the A-field, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the motion of particles in covariant Horava-Lifshitz gravity and the meaning of the A-field will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-42807