Emergent universe revisited through the CSL theory

Abstract

In this work we analyze how the spectrum of primordial scalar perturbations is modified, within the emergent universe scenario, when a particular version of the Continuous Spontaneous Localization (CSL) model is incorporated as the generating mechanism of initial perturbations, providing also an explanation to the quantum-to-classical transition of such perturbations. On the other hand, a phase of super-inflation, prior to slow-roll inflation, is a characteristic feature of the emergent universe hypothesis. In recent works, it was shown that the super-inflation phase could generically induce a suppression of the temperature anisotropies of the CMB at large angular scales. We study here under what conditions the CSL maintains or modifies these characteristics of the emergent universe and their compatibility with the CMB observations.

An Innovative Collaborative Approach to University Training for Learner-Teachers

“…Computer Supported Collaborative Learning (CSCL) theory is a specific branch of collaborative learning that explores how technology can facilitate online collaboration. It draws on concepts such As online social presence and the collective construction of knowledge through digital platforms (Moore, 2019;Bengochea, 2021).…”