Proceedings of the 12th Asia Pacific Physics Conference (APPC12) 2014
DOI: 10.7566/jpscp.1.013094
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## Abstract: The observables of the perturbed Universe, cosmic microwave background (CMB) anisotropy and large scale structures depend on background cosmological parameters, as well as the form of primordial perturbations. Main cosmological parameters are usually constrained using CMB or large scale structure data based on power-law assumption of the primordial power spectrum (PPS). However while there is no any preferred model for the early universe, this assumption raises a concern that current estimated cosmological pa…

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