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arXiv 1006.4522gr-qcastro-ph.COhep-th
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沿着瀑布轨迹的混合通货膨胀

Hybrid inflation along waterfall trajectories

Sebastien Clesse

摘要:

我们确定了一个新的通货膨胀制度,其中超过60个电子折叠产生经典的瀑布阶段发生后,通常的混合通货膨胀。通过执行一个baidom的Monte-Carlo-Markov-Chain分析,这种情况下发生在模型的参数空间的很大一部分。当这种情况发生时,可观测的扰动模式在瀑布膨胀期间离开哈勃半径。绝热扰动的功率谱是红色的,可能与CMB约束一致。一个特别的注意力已经给予研究的量子反反应不影响经典动力学的区域。预热和拓扑缺陷在我们的宇宙中的情况下的影响进行了讨论。

英文摘要:

We identify a new inflationary regime for which more than 60 e-folds are generated classically during the waterfall phase occuring after the usual hybrid inflation. By performing a bayesian Monte-Carlo-Markov-Chain analysis, this scenario is shown to take place in a large part of the parameter space of the model. When this occurs, the observable perturbation modes leave the Hubble radius during waterfall inflation. The power spectrum of adiabatic perturbations is red, possibly in agreement with CMB constraints. A particular attention has been given to study only the regions for which quantum backreactions do not affect the classical dynamics. Implications concerning the preheating and the absence of topological defects in our universe are discussed.

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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