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arXiv 2006.09972astro-ph.COhep-ph
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由Inflaton振荡产生的高频引力子

High-frequency Graviton from Inflaton Oscillation

Yohei Ema, Ryusuke Jinno, Kazunori Nakayama

摘要:

我们指出,随机暴胀引力波背景存在一个高频尾,其标度为$f^{-1/2}$,频率为$f$。这种贡献来自于再加热阶段暴胀子相干振荡放大的引力子真空涨落。它包含了暴胀子性质的信息,如暴胀子质量以及早期宇宙的热历史。

英文摘要:

We point out that there is a high-frequency tail of the stochastic inflationary gravitational wave background that scales as $f^{-1/2}$ with frequency $f$. This contribution comes from the graviton vacuum fluctuation amplified by the inflaton coherent oscillation during the reheating stage. It contains information on inflaton properties such as the inflaton mass as well as the thermal history of the early Universe.

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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