Enigmatic Aspects of the Early Universe: Possibility of a 'Pre-Big Bang Phase'!

Details Enigmatic Aspects of the Early Universe: Possibility of a 'Pre-Big Bang Phase'! Enigmatic Aspects of the Early Universe: Possibility of a 'Pre-Big Bang Phase'!

2010-12-27

arxiv.org/abs/1012.5608v1

Astrophys.Space Sci.333:9-10,2011

Physics

General Physics

4 pages, 10 equations

Scientific paper

10.1007/s10509-011-0670-5

In this paper it is suggested that inclusion of mutual gravitational interactions among the particles in the early dense universe can lead to a 'pre-big bang' scenario, with particle masses greater than the Planck mass implying an accelerating phase of the universe, which then goes into the radiation phase when the masses fall below the Planck mass. The existence of towers of states of such massive particles (i.e. multiples of Planck mass) as implied in various unified theories, provides rapid acceleration in the early universe, similar to the usual inflation scenario, but here the expansion rate goes over 'smoothly' to the radiation dominated universe when temperature becomes lower than the Planck temperature.

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