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arXiv 1008.0164hep-phastro-ph.COhep-th
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现货通货膨胀

Spotted Inflation

Tomohiro Matsuda

摘要:

我们描述了新的情况下产生的曲率扰动时,暴胀(curvaton)有显着的相互作用。我们考虑一个“点”,它产生于与轨迹上的增强对称点(ESP)相关的相互作用。我们的第一个例子使用斑点来诱导场方程的间隙。我们观察到,如果场方程中的间隙在空间中不同时出现,那么它可能会导致曲率扰动的产生。其机制类似于非均匀相变的情形。然后我们观察到,点的相互作用可能会引发冷宇宙中的暖膨胀。讨论了与暴胀子动力学和与斑点相互作用有关的调制有关的宇宙学扰动的产生。

英文摘要:

We describe new scenarios of generating curvature perturbations when inflaton (curvaton) has significant interactions. We consider a ``spot'', which arises from interactions associated with enhanced symmetric point (ESP) on the trajectory. Our first example uses the spot to induce a gap to the field equation. We observe that the gap in the field equation may cause generation of curvature perturbation if it appears not simultaneous in space. The mechanism is similar to the scenario of inhomogeneous phase transition. Then we observe that the spot interactions may initiate warm inflation in the cold Universe. Creation of cosmological perturbation is discussed in relation to the inflaton dynamics and the modulation associated with the spot interactions.

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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