Ekpyrotic and Cyclic Cosmology
by Jean-Luc Lehners
Publisher: arXiv 2009
Number of pages: 79
Ekpyrotic and cyclic cosmologies provide theories of the very early and of the very late universe. In these models, the big bang is described as a collision of branes - and thus the big bang is not the beginning of time. Before the big bang, there is an ekpyrotic phase with equation of state w=P/rho >> 1 during which the universe slowly contracts.
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