A Stochastic Measure for Eternal Inflation
نویسندگان
چکیده
We use the stochastic approach to investigate the measure for slow roll eternal inflation. The probability for the universe of a given Hubble radius can be calculated in this framework. In a solvable model, it is shown that the probability for the universe to evolve from a state with a smaller Hubble radius to that of a larger Hubble radius is dominated by the classical probability without the stochastic source. While the probability for the universe to evolve from a larger Hubble radius to a smaller one is suppressed by exp(−∆S), where the de Sitter entropy S arises naturally in this stochastic approach. [email protected] [email protected] 1
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