id author title date pages extension mime words sentence flesch summary cache txt 2b88qc01643 Nishanth Sasankan Constraints on the Early Universe and Dark Energy from Big Bang Nucleosynthesis 2018 .txt text/plain 189 11 63 In the second part of my thesis I constrain the free parameters of many dark energy models by modeling the evolution of dark energy density from a time before BBN till present time. The allowed values of dark energy density today and during BBN can be used to constrain dark energy models. cache/2b88qc01643.txt txt/2b88qc01643.txt