Present accelerated expansion of the universe from new Weyl-integrable gravity approach

The European Physical Journal C

Mauricio Bellini¹  Claudia Moreno²  Ricardo Aguila²  José Edgar Madriz Aguilar² 

[1] Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata (UNMdP), Funes 3350, C.P. 7600, Mar del Plata, Argentina;Instituto de Investigaciones Físicas de Mar del Plata (IFIMAR), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), La Plata, Argentina;Departamento de Matemáticas, Centro Universitario de Ciencias Exactas e ingenierías (CUCEI), Universidad de Guadalajara (UdG), Av. Revolución 1500, S.R. 44430, Guadalajara, Jalisco, Mexico;

关键词: Dark Energy;    Cosmological Solution;    Cosmological Scale;    Dark Energy Component;    Weyl Geometry;   

DOI  :  10.1140/epjc/s10052-014-3158-y

来源: Springer

【 摘 要 】

We investigate if a recently introduced formulation of general relativity on a Weyl-integrable geometry contains cosmological solutions exhibiting acceleration in the present cosmic expansion. We derive the general conditions to have acceleration in the expansion of the universe and obtain a particular solution for the Weyl scalar field describing a cosmological model for the present time in concordance with the data combination Planck + WP + BAO + SN.

【 授权许可】

CC BY