Mixed metric perturbations in Kaluza-Klein cosmologies.

Details Mixed metric perturbations in Kaluza-Klein cosmologies. Mixed metric perturbations in Kaluza-Klein cosmologies.

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ncimb.106..107b&link_type=abstract

Nuovo Cimento B, Vol. 106, No. 2, p. 107 - 122

Mathematics

Logic

2

Scientific paper

The authors consider metric perturbations of Kaluza-Klein cosmological models filled with phenomenological matter. They find the exact solution for the development in time of the mixed perturbations, which have one index in the ordinary and one in the internal space. The initial values are assumed to be taken as quantum fluctuation. The contraction of the internal scales produces effectively massive wave modes in the ordinary space. The comparison of this particle creation with dark-matter estimations informs about the fundamental parameters of the model.

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