A ug 2 00 7 Scenario of inflationary cosmology from the phenomenological Λ models
نویسندگان
چکیده
Saibal Ray, P. C. Ray, Partha Pratim Ghosh, Utpal Mukhopadhyay and Partha Chowdhury Department of Physics, Barasat Government College, North 24 Parganas, Kolkata 700 124, India & Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007, India; [email protected] Department of Mathematics, Government College of Engineering and Leather Technology, Kolkata 700 098, W. B., India Tara Brahmamoyee Vidyamandir, Matripalli, Shyamnagar 743 127, North 24 Parganas, West Bengal, India Satyabharati Vidyapith, Nabapalli, North 24 Parganas, Kolkata 700 126, West Bengal, India. International Centre for Complex System Studies, West Bengal University of Technology, Kolkata 700 064, W. B., India
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Scenario of inflationary cosmology from the phenomenological Λ models
Choosing the three phenomenological models of the dynamical cosmological term Λ, viz., Λ ∼ (ȧ/a), Λ ∼ ä/a and Λ ∼ ρ where a is the cosmic scale factor, it has been shown by the method of numerical analysis for the considered non-linear differential equations that the three models are equivalent for the flat Universe k = 0 and for arbitrary non-linear equation of state. The evolution plots for d...
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