A brane model, its AdS-dS states and their agitated extra dimensions
A brane model, its AdS-dS states and their agitated extra dimensions
Günther, U.; Vargas Moniz, P.; Zhuk, A.
We consider multidimensional gravitational models with a nonlinear scalar curvature term and form fields. It is assumed that the higher dimensional spacetime undergoes a spontaneous compactification to a warped product manifold. Particular attention is paid to models with quadratic scalar curvature terms and a Freund-Rubin-like ansatz for solitonic form fields. It is shown that for certain parameter ranges the extra dimensions are stabilized for any sign of the internal space curvature, the bulk cosmological constant and of the effective four-dimensional cosmological constant. Moreover, the effective cosmological constant can satisfy the observable limit on the dark energy density.
Keywords: cosmology; higher dimensional gravity; stabilization of extra dimensions
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Contribution to proceedings
The tenth Marcel Grossmann meeting on recent developments in theoretical and experimental general relativity, gravitation and relativistic field theories., 20.-26.07.2003, Rio de Janeiro, Brazil
Proceedings 3/2006), Singapore, New York, Boston: World Scientific Publishing Co., 981-256-667-8, 1715-1717
Permalink: https://www.hzdr.de/publications/Publ-8633