arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1412.7814hep-phastro-ph.COgr-qc
收藏

热涨落对热膨胀的影响

Effects of thermal fluctuations on thermal inflation

Takashi Hiramatsu, Yuhei Miyamoto, Jun'ichi Yokoyama

摘要:

热膨胀的机制是原始膨胀之后相对较短的加速膨胀,如果它们不想与早期宇宙的宇宙学发生冲突,那么它是某类粒子物理模型的理想成分。虽然热膨胀是最简单地描述在热有效势,热环境也会引起热波动,必须考虑。我们数值研究这些热波动的影响,使用晶格模拟。我们的结论是,虽然他们不破坏的热膨胀的情况下,相变在热膨胀的最后通过相混合进行,因此,不伴随着气泡的形成,也没有明显的引力波的振幅。

英文摘要:

The mechanism of thermal inflation, a relatively short period of accelerated expansion after primordial inflation, is a desirable ingredient for a certain class of particle physics models if they are not to be in contention with the cosmology of the early Universe. Though thermal inflation is most simply described in terms of a thermal effective potential, a thermal environment also gives rise to thermal fluctuations that must be taken into account. We numerically study the effects of these thermal fluctuations using lattice simulations. We conclude that though they do not ruin the thermal inflation scenario, the phase transition at the end of thermal inflation proceeds through phase mixing and is therefore not accompanied by the formations of bubbles nor appreciable amplitude of gravitational waves.

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。

↑