PIRSA:14050034

The Case for an Alternative Cosmology

Narlikar, J. (2014). The Case for an Alternative Cosmology. Perimeter Institute. https://pirsa.org/14050034

Narlikar, Jayant. The Case for an Alternative Cosmology. Perimeter Institute, May. 06, 2014, https://pirsa.org/14050034 

          @misc{ pirsa_PIRSA:14050034,
            doi = {10.48660/14050034},
            url = {https://pirsa.org/14050034},
            author = {Narlikar, Jayant},
            keywords = {Cosmology},
            language = {en},
            title = {The Case for an Alternative Cosmology},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {may},
            note = {PIRSA:14050034 see, \url{https://pirsa.org}}
          }

Jayant Narlikar IUCAA - The Inter-University Centre for Astronomy and Astrophysics

Talk numberPIRSA:14050034
DOI10.48660/14050034
Collection
Talk Type Scientific Series
Subject

Abstract

This talk will describe the Quasi-Steady State Cosmology proposed in 1993 by Fred Hoyle, Geoffrey Burbidge and Jayant Narlikar. Starting with the motivation for this exercise, a formal field theoretic framework inspired by Mach’s principle is shown to lead to this model. The model is a generalization of the classical steady state model in the sense that it is driven by a scalar field which causes creation in explosive form. Such ‘minicreation events’ lead to a universe with a long term de Sitter expansion superposed with oscillations of shorter time scales. It is shown that this cosmology explains all the observed cosmological features and that there exist potential tests to distinguish between this cosmology and the standard big bang cosmology.