Miao Li and Yi Wang JCAP06(2007)012 doi:10.1088/1475-7516/2007/06/012
Miao Li and Yi Wang
Show affiliationsWe investigate the measure problem in the framework of inflationary cosmology. The measure of the history space is constructed and applied to inflation models. Using this measure, it is shown that the probability for the generalized single-field slow roll inflation to last for N e-folds is suppressed by a factor exp(−3N), and the probability for the generalized n-field slow roll inflation is suppressed by a much larger factor, exp(−3nN). Some non-inflationary models such as the cyclic model do not suffer from this difficulty.
Issue 06 (June 2007)
Received 13 April 2007, accepted for publication 19 May 2007
Published 11 June 2007
Miao Li and Yi Wang JCAP06(2007)012
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