Primordial SdS universe from a 5D vacuum: scalar field fluctuations on Schwarzschild and Hubble horizons

Дата и время публикации : 2010-03-04T18:26:10Z

Авторы публикации и институты :
Jose Edgar Madriz Aguilar (Guanajuato University)
Mauricio Bellini (IFIMAR & Mar del Plata University)

Ссылка на журнал-издание: JCAP 1011:020,2010
Коментарии к cтатье: Final version to be published in JCAP
Первичная категория: gr-qc

Все категории : gr-qc, astro-ph.CO, hep-ph, hep-th

Краткий обзор статьи: We study scalar field fluctuations of the inflaton field in an early inflationary universe on an effective 4D Schwarzschild-de Sitter (SdS) metric, which is obtained after make a planar coordinate transformation on a 5D Ricci-flat Schwarzschild-de Sitter (SdS) static metric. We obtain the important result that the spectrum of fluctuations at zeroth order is independent of the scalar field mass $M$ on Schwarzschild scales, while on cosmological scales it exhibits a mass dependence. However, in the first-order expansion, the spectrum depends of the inflaton mass and the amplitude is linear with the Black-Hole (BH) mass $m$.

Category: Physics