Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-01-25
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
title is changed, new results are added
Scientific paper
In the model of a gravitating system with two scalar fields (one of which is phantom), two new types of regular solutions are found: mechanism for compactification of an extra dimension and a flat thick brane solution. It is shown that the first model has solutions oscillating over the extra coordinate and giving a finite radius of compactification of the fifth dimension and the second model is a flat thick brane embedded in the 5D Minkowski spacetime. Geometry of both models corresponds to a five-dimensional Minkowski space-time. Consideration of linear perturbations shows stability of the obtained solutions.
Dzhunushaliev Vladimir
Folomeev Vladimir
Myrzakul Sh.
Myrzakulov Ratbay
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