Work

Inflationary expansion of the universe with variable timescale

Year: 2019

Type: article

Abstract: We explore a cosmological model in which the time scale is variable with the expansion of the universe and the effective spacetime is driven by the inflaton field. An example is considered and their predictions are contrasted between Planck 2018 data. We calculate the spectrum indices and the slow-rolling parameters of the effective potential. The results are in very good agreement with observations.

Source: The European Physical Journal C

DOI: 10.1140/epjc/s10052-018-6526-1

Authors: Juan Ignacio Musmarra, Mariano Anabitarte, Mauricio Bellini

Institutions: Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Físicas de Mar del Plata, National University of Mar del Plata

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funders: Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Mar del Plata

Awards: G104575621, G10973064, Campos gravito-electromagnéticos y fluctuaciones térmicas en el universo primordial desde un vacío en 5D.