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arXiv 0706.1691hep-thastro-phgr-qc
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永恒暴胀的一个随机测度

A Stochastic Measure for Eternal Inflation

Miao Li, Yi Wang

摘要:

本文利用随机方法研究了慢滚永恒暴胀的测度。给定哈勃半径的宇宙的概率可以在这个框架中计算。在一个可解模型中,证明了在没有随机源的情况下,宇宙从一个较小的哈勃半径状态演化到一个较大的哈勃半径状态的概率是由经典概率决定的.而宇宙从较大的哈勃半径演化到较小的哈勃半径的概率被$\exp(-ΔS)$抑制,其中de Sitter熵$S$在这种随机方法中自然产生。

英文摘要:

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 $\exp(-ΔS)$, where the de Sitter entropy $S$ arises naturally in this stochastic approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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