Phantom energy-dominated universe as a transient stage in f(R) cosmology

Autor(es)

Moraes, P. H. R. S. ^[1] ; Sahoo, P. K. ^[2] ; Taori, Barkha ^[2] ; Sahoo, Parbati ^[2]

Afiliação do(s) autor(es)

^[1] ITA, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[2] Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078 - India

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF MODERN PHYSICS D; v. 28, n. 10 JUL 2019.
• Citações Web of Science: 1

Resumo

The f(R) theories of gravity are the most popular, simple and well-succeeded extension of Einstein's General Relativity. They can account for some observational issues of standard cosmology with no need for evoking the dark sector of the universe. In the present paper, we will investigate LRS Bianchi type-I spacetime in f(R) gravity theory within the phantom energy-dominated era. We show that in this formalism the phantom energy-dominated universe is a transient stage and in the further stage of the universe dynamics, it is dominated, once again, by dark energy. Such an important feature is obtained from the model, rather than imposed to it, and may have a relation to loop quantum cosmology. (AU)

• Processo FAPESP: 15/08476-0 - Ondas gravitacionais em teorias f(R,T): estados de polarização e fontes astrofísicas
• Beneficiário: Pedro Henrique Ribeiro da Silva Moraes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado