A relativistic calculation of super-hubble suppression of inflation with thermal dissipation

Wolung Lee*, Li Zhi Fang

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

11 引文 斯高帕斯(Scopus)

摘要

We investigated the evolution of the primordial density perturbations produced by inflation with thermal dissipation. A full relativistic analysis on the evolution of initial perturbations from the warm inflation era to a radiation-dominated universe has been developed. The emphasis is on tracking the ratio between the adiabatic and the isocurvature mode of the initial perturbations. This result is employed to calculate a testable factor: the super-Hubble suppression of the power spectrum of the primordial perturbations. We show that based on the warm inflation scenario, the super-Hubble suppression factor, s, for an inflation with thermal dissipation is at least 0.5. This prediction does not depend on the details of the model parameters. If s is larger than 0.5, it implies that the friction parameter Γ is larger than the Hubble expansion parameter H during the inflation era.

原文英語
頁(從 - 到)4467-4480
頁數14
期刊Classical and Quantum Gravity
17
發行號21
DOIs
出版狀態已發佈 - 2000 十一月 7
對外發佈

ASJC Scopus subject areas

  • 物理與天文學(雜項)

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