Phantom fluid supporting traversable wormholes in alternative gravity with extra material terms

Autor(es)

Sahoo, P. K. ^[1] ; Moraes, P. H. R. S. ^[2] ; Sahoo, Parbati ^[1] ; Ribeiro, G. ^[3]

Afiliação do(s) autor(es)

^[1] Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078 - India

^[2] ITA, Dept Fis, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[3] UNESP Univ Estadual Paulista Julio de Mesquita Fi, Dept Fis & Quim, BR-12516410 Guaratingueta, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL JOURNAL OF MODERN PHYSICS D; v. 27, n. 16 DEC 2018.
• Citações Web of Science: 6

Resumo

Wormholes are tunnels connecting different regions in spacetime. They were obtained originally as a solution for Einstein's General Relativity theory and according to this theory, they need to be filled by an exotic kind of an isotropic matter. In the present sense, by ``exotic matter{''}, we mean matter that does not satisfy the energy conditions. In this paper, we propose the modeling of wormholes within an alternative gravity theory that proposes an extra material (rather than geometrical) term in its gravitational action. Our solutions are obtained from well-known particular cases of the wormhole metric potentials, named redshift and shape functions, and yield the wormholes to be filled by a phantom fluid, that is, a fluid with equation of state parameter omega < -1. In possession of the solutions for the wormhole material content, we also apply the energy conditions to them. The features of those are carefully discussed. (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