Traversable wormholes in the traceless f(R,T) gravity

Author(s)

Sahoo, Parbati ^[1] ; Moraes, P. H. R. S. ^{[2, 3]} ; Lapola, Marcelo M. ^[2] ; Sahoo, P. K. ^[4]

Affiliation

^[1] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, Astrophys & Cosmol Res Unit, Private Bag X54001, ZA-4000 Durban - South Africa

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

^[3] Univ Sao Paulo, Inst Astron Geofis & Ciencias Atmosfer IAG, Rua Matao 1226, Cidade Univ, BR-05508090 Sao Paulo, SP - Brazil

^[4] Birla Inst Technol & Sci, Dept Math, Hyderabad Campus, Hyderabad 500078 - India

• Document type: Journal article
• Source: INTERNATIONAL JOURNAL OF MODERN PHYSICS D; v. 30, n. 13 OCT 1 2021.
• Web of Science Citations: 0

Abstract

Wormholes are tunnels connecting different regions in spacetime. They were obtained originally as a solution for Einstein's General Theory of Relativity and according to this theory they need to be filled by an exotic kind of anisotropic 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 traversable wormholes (i.e. wormholes that can be safely crossed) within an alternative gravity theory that proposes an extra material (rather than geometrical) term in its gravitational action, namely the traceless f(R,T) theory of gravitation, with R and T being, respectively, the Ricci scalar and trace of the energy-momentum tensor. Our solutions are obtained from well-known particular cases of the wormhole metric potentials, namely redshift and shape functions. 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)

• FAPESP's process: 15/08476-0 - Gravitational waves in f(R,T) theories: polarization states and astrophysical sources
• Grantee: Pedro Henrique Ribeiro da Silva Moraes
• Support Opportunities: Scholarships in Brazil - Post-Doctoral