Eur. Phys. J. C (2008) 54: 483-487
https://doi.org/10.1140/epjc/s10052-008-0537-2

Regular Article - Theoretical Physics

The bang of a white hole in the early universe from a 6D vacuum state: origin of astrophysical spectrum

¹ Departamento de Física, Facultad de Ciencias, Exactas y Naturales, Universidad Nacional de Mar del Plata, Funes 3350, (7600), Mar del Plata, Argentina
² Consejo Nacional de Investigaciones Científicas y Técnicas, (CONICET), Argentina

^* e-mail: mbellini@mdp.edu.ar

Received: 12 October 2007
Published online: 7 February 2008

Abstract

Using a previously introduced model in which the expansion of the universe is driven by a single scalar field subject to gravitational attraction induced by a white hole during the expansion (from a 6D vacuum state), we study the origin of squared inflaton fluctuations spectrum on astrophysical scales.