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arXiv 1012.4617astro-ph.COgr-qchep-phhep-th
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混合暴胀瀑布对原曲率扰动的贡献

Contribution of the hybrid inflation waterfall to the primordial curvature perturbation

David H. Lyth

摘要:

在结束混合暴胀的瀑布期间,将产生对曲率扰动的贡献$ζ_χ$,这在小尺度上可能是显著的。特别是,它可能导致过多的黑洞形成。我们在这里考虑标准的混合暴胀,瀑布场的快子质量比哈勃参数大得多。我们在最简单的情况下计算$ζ_χ$,看看为什么以前的$ζ_χ$计算是不正确的。

英文摘要:

A contribution $ζ_χ$ to the curvature perturbation will be generated during the waterfall that ends hybrid inflation, that may be significant on small scales. In particular, it may lead to excessive black hole formation. We here consider standard hybrid inflation, where the tachyonic mass of the waterfall field is much bigger than the Hubble parameter. We calculate $ζ_χ$ in the simplest case, and see why earlier calculations of $ζ_χ$ are incorrect.

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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