Remarks on dimensional reduction of multidimensional cosmological models
Remarks on dimensional reduction of multidimensional cosmological models
Günther, U.; Zhuk, A.
Multidimensional cosmological models with factorizable geometry and their dimensional reduction to effective four-dimensional theories are analyzed on sensitivity to different scalings. It is shown that a non-correct gauging of the effective four-dimensional gravitational constant within the dimensional reduction results in a non-correct rescaling of the cosmological constant and the gravexciton/radion masses. The relationship between the effective gravitational constants of theories with different dimensions is discussed for setups where the lower dimensional theory results via dimensional reduction from the higher dimensional one and where the compactified space components vary dynamically.
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 2(2006), Singapore, New York, Boston: World Scientific Publishing Co., 981-256-667-8, 877-889
Permalink: https://www.hzdr.de/publications/Publ-8632