Big bounce cosmos makes inflation a sure thing - space - 13 October 2010 - New Scientist: "IS OUR universe a recycled version of an earlier cosmos? The idea, which replaces the big bang with a 'big bounce', has received a boost: this vision of the birth of the universe can explain why a subsequent process, called inflation, occurred.
'The result puts the idea of inflation on firmer ground, and at the same time makes the bounce scenario much more credible,' says Carlo Rovelli, who was not involved in the work but studies quantum gravity at the University of Marseille in France.
Inflation is an episode of exponential expansion thought to have occurred fractions of a second after the big bang. It is needed to explain, among other things, why the universe today has the geometry it does, but explaining what triggered inflation is tricky."
Friday, October 15, 2010
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