An Approach of Employing Some Cosmological Parameters to Describe the Friedmann Micro- Universe

The Friedmann-model was proposed as a solution to Einstein's formulae, so as to get multiple sets of equations specifying cosmological parameters. The time and temperature evolution of a number of cosmological parameters, including scale factor, energy density, pressure, Hubble parameter, and deceleration parameter, which describe the macro world, have been studied in the context of radiation, matter, and dark energy. To describe the micro universe, Fridmann models require to be modified by going back in time to get a new definition for the cosmological parameters. A way that describes Friedmann as a micro universe considered that the strong force (short rang) operates by an equation like that of Einstein equations. The Einstein field equations, which concentrate on the large space-time structure of the universe, will be modified accordingly to take into consideration the small range scale. The cosmological parameter for the macro and micro universes was displayed against temperature and time going back to the end of radiation dominated to matter dominated eras, representing that the universe exhibits a shift from an accelerated expansion of macro universe to a decelerated expansion of micro universe.