Extra force and extra mass from noncompact Kaluza-Klein theory in a cosmological model
Jose Edgar Madriz Aguilar, Mauricio Bellini
Abstract
Using the Hamilton-Jacobi formalism, we study extra force and extra mass in a recently introduced noncompact Kaluza-Klein cosmological model. We examine the inertial 4D mass m0 of the inflaton field on a 4D FRW bulk in two examples. We find that m0 has a geometrical origin and antigravitational effects on a non inertial 4D bulk should be a consequence of the motion of the fifth coordinate with respect to the 4D bulk.
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