Noether Symmetries of a Modified Model in Teleparallel Gravity and a New Approach for Exact Solutions

TL;DR

This paper explores Noether symmetries in a modified teleparallel gravity model with a novel approach for exact solutions, revealing insights into cosmic acceleration and observational data consistency.

Contribution

It introduces a new action in teleparallel gravity with scalar-magnetic coupling and a novel B.N.S. approach for obtaining more conserved currents and exact solutions.

Findings

Late-time acceleration consistent with observations

Phase crossing observed in the model

Connections with universe age and cosmological parameters

Abstract

In this paper, we have presented the Noether symmetries of flat FRW spacetime in the context of a new action in Teleparallel Gravity which we construct it based on $f(R)$ version. This modified action contains a coupling between scalar field potential and magnetism. Also, we introduce an innovative approach (B.N.S. Approach) for exact solutions which carry more conserved currents than Noether approach. By data analysis of the exact solutions, obtained from Noether approach, late time acceleration and phase crossing are realized, and some deep connections with observational data such as the age of the universe, the present amounts of the scale factor as well as the state and deceleration parameters are observed. In B.N.S. approach, we have considered dark energy dominated era.