Gravitational excitons from extra dimensions

Details Gravitational excitons from extra dimensions Gravitational excitons from extra dimensions

1997-06-16

arxiv.org/abs/gr-qc/9706050v2

Phys.Rev.D56:6391-6402,1997

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Revised version --- 12 references added, Introduction enlarged, 20 pages, LaTeX, to appear in Phys.Rev.D56 (15.11.97)

Scientific paper

10.1103/PhysRevD.56.6391

Inhomogeneous multidimensional cosmological models with a higher dimensional space-time manifold are investigated under dimensional reduction. In the Einstein conformal frame, small excitations of the scale factors of the internal spaces near minima of an effective potential have a form of massive scalar fields in the external space-time. Parameters of models which ensure minima of the effective potentials are obtained for particular cases and masses of gravitational excitons are estimated.

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