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- W1973205583 abstract "The scenario has become the paradigm of early and - in conjuction with ideas from superstring theory - has led to speculations about an inflationary multiverse. From a point of view of phenomenology, the scenario has been very successful. However, the scenario suffers from some conceptual problems, and thus it does not (yet) have the status of a solid theory. There are alternative ideas for the evolution of the very early which do not involve inflation but which agree with most current cosmological observations as well as inflation does. In this lecture I will outline the conceptual problems of inflation and introduce two alternative pictures - the matter bounce and string gas cosmology, the latter being a realization of the emergent universe scenario based on some key principles of superstring theory. I will demonstrate that these two alternative pictures lead to the same predictions for the power spectrum of the observed large-scale structure and for the angular power spectrum of cosmic microwave background anisotropies as the scenario, and I will mention predictions for future observations with which the three scenarios can be observationally teased apart." @default.
- W1973205583 created "2016-06-24" @default.
- W1973205583 creator A5018233846 @default.
- W1973205583 date "2012-04-27" @default.
- W1973205583 modified "2023-09-27" @default.
- W1973205583 title "Do we have a Theory of Early Universe Cosmology" @default.
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