56 citations · 101 across the 3 of their papers we have counts for
9 papers
AdS and stabilized extra dimensions in multidimensional gravitational models with nonlinear scalar curvature terms 1/R and R^4
Uwe Guenther, Alexander Zhuk, Valdir Bezerra +1
We study multidimensional gravitational models with scalar curvature nonlinearities of the type 1/R and R^4. It is assumed that the corresponding higher dimensional spacetime manif…
Massive scalar fields in the early Universe
Uwe Guenther, Alexander Zhuk
We discuss the role of gravitational excitons/radions in different cosmological scenarios. Gravitational excitons are massive moduli fields which describe conformal excitations of…
Nonlinear multidimensional cosmological models with form fields: stabilization of extra dimensions and the cosmological constant problem
U. Guenther, P. Moniz, A. Zhuk
We consider multidimensional gravitational models with a nonlinear scalar curvature term and form fields in the action functional. In our scenario it is assumed that the higher dim…
Perfect fluid brane-world model
M. Bouhmadi-Lopez, P. F. Gonzalez-Diaz, A. Zhuk
By considering 5--dimensional cosmological models with a bulk filled with a perfect fluid and a cosmological constant, we have found regular instantonic solution which is free from…
Comment on stability of atoms and nuclei in multidimensional TeV scale gravity
U. Guenther, A. Kuklov, A. Zhuk
We discuss the stability of atoms and nucleons in the presence of multidimensional gravity characterized by the unified energy scale 1TeV. We point out that the multidimensional gr…
Observable effects from extra dimensions
U. Guenther, A. Zhuk
For any multidimensional theory with compactified internal spaces, conformal excitations of the internal space metric result in gravitational excitons in the external spacetime. Th…