Early Universe with Variable Cosmological Constants in Higher Dimensional Space Time

Details Early Universe with Variable Cosmological Constants in Higher Dimensional Space Time Early Universe with Variable Cosmological Constants in Higher Dimensional Space Time

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008ijtp...47.1844k&link_type=abstract

International Journal of Theoretical Physics, Volume 47, Issue 7, pp.1844-1852

Mathematics

Logic

Early Universe, Gravitational And Cosmological Constants

Scientific paper

The field equations with variable cosmological and gravitational constants are consider in the presence of perfect fluid for Kaluza-Klein type cosmological model. The exact solutions of the field equations are obtained by using the gamma law equation of state p=( γ-1) ρ in which the parameter γ depends on scale factor R. The functional form of γ( R) is used to analyze a wide range of cosmological solution at early universe for two phases in cosmic history: inflationary phase and radiation dominated phase. The corresponding physical interpretation of cosmological solution are also discussed in the framework of higher dimensional space time.

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