1:00pm Monday June 5 in 3 East - Theory Conference Room.
We investigate effective 4-D models which were obtained by dimensional reduction of multidimensional cosmological models. It is shown that conformal excitations of the internal space metric can be observed as massive scalar fields (gravitational excitons) in the external space-time. They are weakly-interacting massive particles and can be considered as the dark matter. The problem of the internal space stabilization and the external space inflation is investigated. Some of the cosmological and astro-physical implications of the gravexcitons are discussed.