• Moncy V John

      Articles written in Pramana – Journal of Physics

    • Stochastic evolution of cosmological parameters in the early universe

      C Sivakumar Moncy V John K Babu Joseph

      More Details Abstract Fulltext PDF

      We develop a stochastic formulation of cosmology in the early universe, after considering the scatter in the redshift-apparent magnitude diagram in the early epochs as an observational evidence for the non-deterministic evolution of early universe. We consider the stochastic evolution of density parameter in the early universe after the inflationary phase qualitatively, under the assumption of fluctuating w factor in the equation of state, in the Fokker-Planck formalism. Since the scale factor for the universe depends on the energy density, from the coupled Friedmann equations we calculated the two variable probability distribution function assuming a flat space geometry.

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