The origin of scale-scale correlations of the density perturbations during inflation

Li Zhi Fang*, Wolung Lee, Jesús Pando

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

摘要

We show that scale-scale correlations are a generic feature of slow-roll inflation theories. These correlations result from the long-time tails characteristic of the time dependent correlations because the long wavelength density perturbation modes are diffusion-like. A relationship between the scale-scale correlations and time-correlations is established providing a way to reveal the time correlations of the perturbations during inflation. This mechanism provides for a testable prediction that the scale-scale correlations at two different spatial points will vanish.

原文英語
頁(從 - 到)731-738
頁數8
期刊International Journal of Modern Physics D
8
發行號6
DOIs
出版狀態已發佈 - 1999 十二月
對外發佈

ASJC Scopus subject areas

  • 數學物理學
  • 天文和天體物理學
  • 空間與行星科學

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